US1907993A - Billing machine form aligner - Google Patents
Billing machine form aligner Download PDFInfo
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- US1907993A US1907993A US469410A US46941030A US1907993A US 1907993 A US1907993 A US 1907993A US 469410 A US469410 A US 469410A US 46941030 A US46941030 A US 46941030A US 1907993 A US1907993 A US 1907993A
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- Prior art keywords
- carbon
- forms
- strip
- strips
- proper
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- Expired - Lifetime
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J17/00—Mechanisms for manipulating page-width impression-transfer material, e.g. carbon paper
Definitions
- Our invention relates to typevn-iter biiling machines wherem forms r the like in continuous strips are used with carbon sheets located between the leading end portions of the form strips and adapted, upon completion of the typing of each set of f is, to be retracted to a position ready for use bctwee" the forms of the neXt succeeding so that the typed set of forms may be severed from the form strips without inutilating the carbons, and our invention has reference more particularly to improvements in such 1nachines whereby forms of different dimensions may be employed at the same time and readily cut off in diii'erent lengths.
- the principal objects of our invention are toprovide a simple and convenient method and structure whereby forms of diiferent dimensionsmay be used conjointly in billing machines and the like; to insure relative positioning of such forms in proper superposed registering relation for typing; to permit sets of different length forms to be readily cut off or severed from the form strips; to
- Fig. 1 is a plan viewof abilling machine equipped with our improvements
- Fig. 2 is a vertical longitudinal sectional view of the upper portion of the machine taken substantially on the line 2-42 of Fig. 1;
- Fi 3 is an enlarged detail vertical sectiona view on the line 33 of i 1;
- Fig. 4 is an enlarged vertical cross sectional view on line 4- 1 of Fig. 1;
- Fig. 5 is an enlargeddetail vertical sec tional view on line 5--5 of Fig. 1 with an intermediate portion broken away, and
- Fig. 6 is a perspective view of the form cutting gauge stop.
- the reference numeral 1 (se 'l and 2) indicates the main frame of-a typewriter, 2 the cylinder or piaten, and E5 the carriage which supports the cylinder or platen 2 in the usual manner for movement across the top of the main frame.
- An auxiliary frame 4i extends rearwardly roni the main frame 1 and supports an intermedi te car ag 5 which is attached to the cylinder carriage 3 and provided with rollers ("3 running; on transverse tracl: members 7 of the auxiliary frame so that the intermediate carriage 5 moves freely with the cylinder carriage 3.
- the intermediate carriage 5 is of the usual form and has a carbon blade bracket plate .8 mounted thereon to move. along guides 9 to and from the: cylinder 2, said plate 8 being provided at each side with stepped carbonblade brackets 10 and 11 on the successive elevations of which carbon b ades may be secured for holding carbon 1 sheets between superposed form strips so that the carbon sheets feed with the forms to the cylinder 2 and may be retracted after each typing operation to a position between the next succeeding forms so as to permit the i typed forms to be separated or cut from the form strips without mutilating the carbon sheets.
- the plate 8 For retracting the carbon blade bracket plate assembly and the carbon sheets vhich are connected therewith,said plate 8 has along arm 12 extending forwardly therefrom at one side of the machine and provided with an' outturned forward end which is positioned so as to be conveniently accessible to the machine operator for pushing the carbon blade bracket plate assembly rearwardly the extent of such rearward movement being regulated by an adjustable stop 13 on one of the guides 9 which said stop is set in the proper position by the clamping screw 14-, to be engaged by the carbon blade bracket plate 8 when the latter is pushed rearwardly away'from the cylinder to the desired limit of its rearward movement.
- the carbon blades two of which are shown herein at 15 and 16 mounted on the upper steps of the respective brackets 10 and 11, although additional carbon blades may be employed and mounted on the other steps of said brackets if desired, are of a known form consisting of a blade proper which is pivoted at one end between opposite side walls of a thin channeled clasp member to swing therein in somewhat the manner of a jack knife so as to clamp onto the end of the carbon sheet, said carbon blade being secured in the closed carbon clamping position to the selected step of one of the carbon blade brackets 10 or 11 many convenient manner as by a thumb screw 17. ,7
- a transverse rod 18 is provided at each end of the intermediate carriage and each rod-18 has a pair of adjustable guides 19 thereon which may be slid along the respective rod 18to' therequired position and in suitable spaced relation to accommodate the width of form strips that are being used,
- carbon sheets of the required number corresponding to the number of carboncopies to be made are provided and each carbon sheet is attached at its rear end with the carbon side up, to a separate carbon blade and the carbon blades aremounted on selected steps of the carbon blade brackets, preferably in alternate order on the two brackets 10 and 11 and the forms (one more than the number of carbon sheets) are fed over the rear rod 18 andbetween the guides 19 thereof and then over and under and between the carbon blades and their respective carbons so that the form strip which is to constitute the typed original is under the lowermost carbon blade and its carbon, the first copy between the lowermost'earbon blade and the one next above and between their respective carbon sheets (if more than one copy is to be made) and so on, the last form strip be ing located over the uppermostcarbon blade and 'carbongsheet.
- the form strips being preferably perforated between the successive forms thereof where they are to be separated and the gauge 23 being adjusted so that the lines of perforations are positioned along the edge of the cutter bar 20 when the set offorms is adjusted ready for the cutting operation.
- a pair of front and rear transverse rods 26 are mounted on the intermediate carriage 5 above the front and rear transverse rods 18 and each of these rods 26 is provided with a pair of slidable guides 27 which may be relatively adjusted according to the Width of the narrower strip 24L and positioned'along the rods 26 so as to locate the narrower form strip at the particular place required between the lateral edges of the strips 25.
- the carbon sheet 28 for that strip is preferably of a corresponding narrow width and attached along its respective carbon blade so that it will be in line with the form strip 24.
- the narrow strip 24 has the short length forms and em tends over the uppermost carbon blade 15 and under a plurality of grippers 29 which are arranged at proper intervals to clamp the form strip between the grippers 29 and said uppermost carbon blade 15 so that the strip 24 may be adjusted lengthwise by the movement of the carbon blade bracket plate assembly.
- These grippers are in the form of leaf springs which are secured at their rear ends to collars 30 which are mounted on the shaft 31 which is journaled near the ends in brackets 32 on the plate 8, said collars and grippers being slidable along the shaft 31 for adjustment to accommodate form strips of different Widths and locked in the various positions of adjustment by the setscrews 33.
- a depending arm 34 which is fixed on one end of the shaft 31 is connected by a spring 35 to the adjacent carbon blade bracket 11 so as to exert a constant tension to rotate the shaft 31 in the direction to elevate thegrippers 29, the extent of such elevating movement of the grippers being limited by a depending stop arm 36 which is fixed on the other end of the shaft 31 and engages against the adjacent carbon blade bracket 10 so that the grippers are normally maintained by the spring 35 at a distance above the uppermost carbon blade 15 which is sufficient to permit the upper form strip to move freely therebetween.
- the form strip 24 is adapted to be adj usted by the retractile movement of the carbon blade bracket plate assembly to the proper position, according to its length, relative to the other form strips 25, for cutting off in the desired short length and loeating same in the proper registering relation to the other forms for typing, and for controlling the action of the grippers 29 so as to clamp the form strip 24 to the carbon blade bracket plate assembly at the proper der the arm 37, thereby rocking the grippers 29 to the clamping position and'iholding same in such pos1t1on during the further retractile movement of the carbon blade bracket plate assembly so that the form strip 24 is moved rearwardly therewith a distance determined by the length of the projecting portion of the depressor arm, it being understood that th depresser arm 37 may be adjusted on the stop member 13 to re ulate the action of the grippers to obtain any desired longitudinal adjustment of the form strip 24.
- the forms and carbons are arranged and introduced in the usual manner to the cylinder, the form strip 24 being inserted between the rippers 29 and the uppermost carbon blade 15 and over a narrow carbon sheet 24 which is preferably masked at the proper place to avoid typing on the form strip 24 except over the area thereof constituting the short length form whi his being typed, the short length form in the present instance having its leading edge inline withthe leading edges of the other forms 25 during the typing operation.
- the leading edges of all the forms are brought up to the gauge 23 which is of special construction with a divider 42 thereon which is adapted to be inserted between the short form strip 24 and the other form strips.
- This divider is slidable on the gauge member 23 to and from the lever 22 and has a spring holder 43 on the under side for releasably clamping the end of the strip 24 against the lever 22 while the ends of the other strips are manually held by the operator against the outer side ofthe divider 42.
- This retractile movement of the strip 24 is regulated by the adjustment of the depresser arm 37 so that when the retractile movement of the carbon blade bracket plate assembly is arrested by engagement with the stop 13, the typed form at the leading end of said strip 24: is positioned with the line along which it is to be severed coinciding with the lines along which the other typed forms are to be severed, and these lines along whichthe forms ofthe typed set are to be severed are located along the cutting edge of the cutter bar 20 so that'the typed forms may be readily severed from their respective strips in the usual manner by a tearing operation against the cutting edge of the cutter bar 20.
- This retractile movement of the form strip 24L with the carbon sheets also positions said strip so that next succeeding form thereof, after the completed one that is being severed, is located in the proper registering relation to the corresponding-forms of the other strips 25 for typing the next set of forms, and thus the short length form is adjusted by the operation of the carbon sheet retracting mechanism and without any extra operations, ready for typing, and this adjustment also insures proper positioning ofthe short length form so that it may be readily severed at the same time and in the same severing operation with the other forms.
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- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Description
y 1933- D. E. MAXHAM ET AL BILLING MACHINE FORM ALIGNER Filed July 21, 1950 2 Sheets-Sheet 1 N OOOGGQG OOQQOCDQG [mm/7mm and 90/7; Z a Max/1am Jul/U5 J P/7/Z /0/7 5 gL om'ay @QQOOQQ @QOGGGGC) y 9, 1933- D. E. MAXHAM ET AL 1,907,993
BILLING MACHINE FORM ALIGNER Filed Jul 21, 1930 2 Sheets-Sheet 2 [ma/Mars Patented May 9, 1933 FHQE DONALD E. MAXHAM AND JULIUS J. PHELION, 0F IiIISI-IAW' AKA, INDIANA BILLING MACHINE FORTE ALIGNER Application filed July 21, 1330. Serial No. 469,410.
Our invention relates to typevn-iter biiling machines wherem forms r the like in continuous strips are used with carbon sheets located between the leading end portions of the form strips and adapted, upon completion of the typing of each set of f is, to be retracted to a position ready for use bctwee" the forms of the neXt succeeding so that the typed set of forms may be severed from the form strips without inutilating the carbons, and our invention has reference more particularly to improvements in such 1nachines whereby forms of different dimensions may be employed at the same time and readily cut off in diii'erent lengths.
The principal objects of our invention are toprovide a simple and convenient method and structure whereby forms of diiferent dimensionsmay be used conjointly in billing machines and the like; to insure relative positioning of such forms in proper superposed registering relation for typing; to permit sets of different length forms to be readily cut off or severed from the form strips; to
accomplish. the proper relative positioning of forms of different lengths automatically throughthe usual operations of the billing machine without requiring extra time or special attention ofthe o ,erator; and to provide a device of this character which is readily adaptable to present forms of billing machines and which does not interfere with use of the billing anachine with forms of uniform dimensions.
3 On the drawings: 1
Fig. 1 is a plan viewof abilling machine equipped with our improvements;
Fig. 2 is a vertical longitudinal sectional view of the upper portion of the machine taken substantially on the line 2-42 of Fig. 1;
Fi 3 is an enlarged detail vertical sectiona view on the line 33 of i 1;
Fig. 4 is an enlarged vertical cross sectional view on line 4- 1 of Fig. 1;
Fig. 5 is an enlargeddetail vertical sec tional view on line 5--5 of Fig. 1 with an intermediate portion broken away, and
Fig. 6 is a perspective view of the form cutting gauge stop.
Referring to the drawings, the reference numeral 1 (se 'l and 2) indicates the main frame of-a typewriter, 2 the cylinder or piaten, and E5 the carriage which supports the cylinder or platen 2 in the usual manner for movement across the top of the main frame. An auxiliary frame 4i extends rearwardly roni the main frame 1 and supports an intermedi te car ag 5 which is attached to the cylinder carriage 3 and provided with rollers ("3 running; on transverse tracl: members 7 of the auxiliary frame so that the intermediate carriage 5 moves freely with the cylinder carriage 3.
The intermediate carriage 5 is of the usual form and has a carbon blade bracket plate .8 mounted thereon to move. along guides 9 to and from the: cylinder 2, said plate 8 being provided at each side with stepped carbonblade brackets 10 and 11 on the successive elevations of which carbon b ades may be secured for holding carbon 1 sheets between superposed form strips so that the carbon sheets feed with the forms to the cylinder 2 and may be retracted after each typing operation to a position between the next succeeding forms so as to permit the i typed forms to be separated or cut from the form strips without mutilating the carbon sheets. For retracting the carbon blade bracket plate assembly and the carbon sheets vhich are connected therewith,said plate 8 has along arm 12 extending forwardly therefrom at one side of the machine and provided with an' outturned forward end which is positioned so as to be conveniently accessible to the machine operator for pushing the carbon blade bracket plate assembly rearwardly the extent of such rearward movement being regulated by an adjustable stop 13 on one of the guides 9 which said stop is set in the proper position by the clamping screw 14-, to be engaged by the carbon blade bracket plate 8 when the latter is pushed rearwardly away'from the cylinder to the desired limit of its rearward movement.
The carbon blades, two of which are shown herein at 15 and 16 mounted on the upper steps of the respective brackets 10 and 11, although additional carbon blades may be employed and mounted on the other steps of said brackets if desired, are of a known form consisting of a blade proper which is pivoted at one end between opposite side walls of a thin channeled clasp member to swing therein in somewhat the manner of a jack knife so as to clamp onto the end of the carbon sheet, said carbon blade being secured in the closed carbon clamping position to the selected step of one of the carbon blade brackets 10 or 11 many convenient manner as by a thumb screw 17. ,7
F or guiding the form strips over the intermediate carriage and over the carbon blade bracket plate to the cylinder 2 0f the billing machine, a transverse rod 18 is provided at each end of the intermediate carriage and each rod-18 has a pair of adjustable guides 19 thereon which may be slid along the respective rod 18to' therequired position and in suitable spaced relation to accommodate the width of form strips that are being used,
and direct same tof'the proper place on the cylinder 2.
' In using a structure of the above character, which is illustrative of a type of billing machinewhich has been used heretofore, carbon sheets of the required number corresponding to the number of carboncopies to be made, are provided and each carbon sheet is attached at its rear end with the carbon side up, to a separate carbon blade and the carbon blades aremounted on selected steps of the carbon blade brackets, preferably in alternate order on the two brackets 10 and 11 and the forms (one more than the number of carbon sheets) are fed over the rear rod 18 andbetween the guides 19 thereof and then over and under and between the carbon blades and their respective carbons so that the form strip which is to constitute the typed original is under the lowermost carbon blade and its carbon, the first copy between the lowermost'earbon blade and the one next above and between their respective carbon sheets (if more than one copy is to be made) and so on, the last form strip be ing located over the uppermostcarbon blade and 'carbongsheet. These form strips and carbon sheets are then extended forwardly over the forward rod 18and between its guides 19 and run under theplaten or cylinder 2 inthe usual manner of feeding sheets diate carriage 5, the leading ends of the forms and carbonsheets passing between the cyl1nder2 and a cutter bar 20 and over a plate 21 which has a centrally arranged lever 22 with an adjustable gauge 23 thereon for determining the proper positioning of the ets of forms for tearing off or cutting at the proper line of separation between successive forms.
After typing the set of forms, the leading edges thereof are brought up to the gauge 23 which has been previously adjusted to the proper position for the length of forms that are being used and the lever 22'pulled forwardly, which operation, in the particular machine illustrated herein, elevates the cylinder or platen 2 as shown by dotted lines in Fig. 2 so as to release the holding pressure on the form strips and carbons, and while 7 holding the ends of the form strips at places where there are no carbons therebetwe'en and at the same time holding the leading edges of the forms at the gauge 23, the arm 12 is pushed rearwardly until the carbon blade bracket plate 8 strikes the stop 13, thereby retracting the carbons from the typed forms to a position between the next succeeding set of forms and beyond the place where the typed set of formsis to be torn or severed from the next succeeding set. While still holding the typed forms at the gauge the lever 22 is then thrown rearwardly to the full line position of Figs. 1 and 2, thus restoring the platen or cylinder 2 to its former paper holding position, after which the typed set of forms is torn off along the edge of the cutter bar 20, the form strips being preferably perforated between the successive forms thereof where they are to be separated and the gauge 23 being adjusted so that the lines of perforations are positioned along the edge of the cutter bar 20 when the set offorms is adjusted ready for the cutting operation.
With machines of the above described character however, it is customary to use forms of the same dimensions for originals and copies, there being no provision for utilization at the same time of formstrips comprisingforms of different dimensions and it is the principal purpose of our invention to adapt continuous'form strip billing machines'to use conjointly or at the same time forms of different transverse or longitudinal dimensions or both.
For permitting use of a form strip of a different width than the others, as for example, a strip as indicatedat 24 in Fig. 1 which is narrower than the other strips, indicated at 25, a pair of front and rear transverse rods 26 are mounted on the intermediate carriage 5 above the front and rear transverse rods 18 and each of these rods 26 is provided with a pair of slidable guides 27 which may be relatively adjusted according to the Width of the narrower strip 24L and positioned'along the rods 26 so as to locate the narrower form strip at the particular place required between the lateral edges of the strips 25.
When ainarrow strip 24 is employed, the carbon sheet 28 for that strip is preferably of a corresponding narrow width and attached along its respective carbon blade so that it will be in line with the form strip 24.
In using forms of different lengths it is necessaryto locate the short length form at the proper place between the ends or topand bottom edges of the other forms for typing and it is desirable to insure proper posl tioning of the short length form before the cutting or severing operation so that it will be severed along the proper line in the same operation with the severing of the other forms, these adjustments being accomplished in the illustrated embodiment of our inven tion by gripping members on the carbon blade bracket plate assembly which are controlled so as to engage and shift the short length form strip at proper times in the retractile movement of said assembly.
In the illustrated embodiment the narrow strip 24 has the short length forms and em tends over the uppermost carbon blade 15 and under a plurality of grippers 29 which are arranged at proper intervals to clamp the form strip between the grippers 29 and said uppermost carbon blade 15 so that the strip 24 may be adjusted lengthwise by the movement of the carbon blade bracket plate assembly. These grippers are in the form of leaf springs which are secured at their rear ends to collars 30 which are mounted on the shaft 31 which is journaled near the ends in brackets 32 on the plate 8, said collars and grippers being slidable along the shaft 31 for adjustment to accommodate form strips of different Widths and locked in the various positions of adjustment by the setscrews 33. A depending arm 34 which is fixed on one end of the shaft 31 is connected by a spring 35 to the adjacent carbon blade bracket 11 so as to exert a constant tension to rotate the shaft 31 in the direction to elevate thegrippers 29, the extent of such elevating movement of the grippers being limited by a depending stop arm 36 which is fixed on the other end of the shaft 31 and engages against the adjacent carbon blade bracket 10 so that the grippers are normally maintained by the spring 35 at a distance above the uppermost carbon blade 15 which is sufficient to permit the upper form strip to move freely therebetween.
The form strip 24 is adapted to be adj usted by the retractile movement of the carbon blade bracket plate assembly to the proper position, according to its length, relative to the other form strips 25, for cutting off in the desired short length and loeating same in the proper registering relation to the other forms for typing, and for controlling the action of the grippers 29 so as to clamp the form strip 24 to the carbon blade bracket plate assembly at the proper der the arm 37, thereby rocking the grippers 29 to the clamping position and'iholding same in such pos1t1on during the further retractile movement of the carbon blade bracket plate assembly so that the form strip 24 is moved rearwardly therewith a distance determined by the length of the projecting portion of the depressor arm, it being understood that th depresser arm 37 may be adjusted on the stop member 13 to re ulate the action of the grippers to obtain any desired longitudinal adjustment of the form strip 24.
With this device the forms and carbons are arranged and introduced in the usual manner to the cylinder, the form strip 24 being inserted between the rippers 29 and the uppermost carbon blade 15 and over a narrow carbon sheet 24 which is preferably masked at the proper place to avoid typing on the form strip 24 except over the area thereof constituting the short length form whi his being typed, the short length form in the present instance having its leading edge inline withthe leading edges of the other forms 25 during the typing operation.
After the set of forms are typed the leading edges of all the forms are brought up to the gauge 23 which is of special construction with a divider 42 thereon which is adapted to be inserted between the short form strip 24 and the other form strips. This divider is slidable on the gauge member 23 to and from the lever 22 and has a spring holder 43 on the under side for releasably clamping the end of the strip 24 against the lever 22 while the ends of the other strips are manually held by the operator against the outer side ofthe divider 42. In practice the operator presses down on the form strips that overlie the divider 42 and the latter is by this pressure pushed down on the gauge member 23 so that the spring 43 clamps the end of the strip 24 against the lever 22, an adjusting screw 44 being provided which serves as a stop to limit the movement of the divider 42 toward the lever 22 and thus regulates the holding tension of the spring 43, the purpose of this construction being to permit the operator to securely hold all of the form strips excepting the short length form strip 24 at the gauge throughout theentire retractile movement of the carbon sheets so that there is no change in position thereof, while the end of the form strip is held sufficiently by the spring 43 to be retained at the gauge 23 during the retractile movement'oi the carbons 25 and 45 until they grippers 29 are operated by the depresser arm 37=to clamp the strip 24 against the uppermost-carbon knife l5,-whereupon the end of the strip 24 is pulled from its position of engagement by the spring 43 and said strip is retracted with the carbon sheets by the further retractile movement of the carbon blade bracket plate assembly.
7 This retractile movement of the strip 24 is regulated by the adjustment of the depresser arm 37 so that when the retractile movement of the carbon blade bracket plate assembly is arrested by engagement with the stop 13, the typed form at the leading end of said strip 24: is positioned with the line along which it is to be severed coinciding with the lines along which the other typed forms are to be severed, and these lines along whichthe forms ofthe typed set are to be severed are located along the cutting edge of the cutter bar 20 so that'the typed forms may be readily severed from their respective strips in the usual manner by a tearing operation against the cutting edge of the cutter bar 20. This retractile movement of the form strip 24L with the carbon sheets also positions said strip so that next succeeding form thereof, after the completed one that is being severed, is located in the proper registering relation to the corresponding-forms of the other strips 25 for typing the next set of forms, and thus the short length form is adjusted by the operation of the carbon sheet retracting mechanism and without any extra operations, ready for typing, and this adjustment also insures proper positioning ofthe short length form so that it may be readily severed at the same time and in the same severing operation with the other forms.
While we have shown and described our invention'in a preferred form, we are aware 7 that various changes and modifications may be made without departing from the pr1nc1-- ples of our invention, the scope of which is to be determined by the appended claims. 7
We claim as our'invention:
1. The combination with a typewriter of a carbon sheet retractorwhereby sheets of carbon paper are held between superimposed strips of paper which=are collectively supplied to the typewriter, a cross member on the retractor over which one of said'strips passes and means operable ata predetermined period in the retractile movement of said retractor to clamp said strip to said cross member for selectively adjusting said strip of paper longitudinally of the other strips of paper.
2. The combination with'a typewriter of a frame, a carbon sheet retractor movably mountedthereon whereby sheets of carbon paper are held'between superimposed strips operable at a predetermined period during the retractile movement of said retra'ctor by interengaging means adjustably mounted on said stop.
DONALD E. MAXI-1AM. JULIUS J. PHILION.
of paper which are collectively supplied to i
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US469410A US1907993A (en) | 1930-07-21 | 1930-07-21 | Billing machine form aligner |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US469410A US1907993A (en) | 1930-07-21 | 1930-07-21 | Billing machine form aligner |
Publications (1)
Publication Number | Publication Date |
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US1907993A true US1907993A (en) | 1933-05-09 |
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US469410A Expired - Lifetime US1907993A (en) | 1930-07-21 | 1930-07-21 | Billing machine form aligner |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4632585A (en) * | 1984-03-14 | 1986-12-30 | Kabushiki Kaisha Toshiba | Image forming apparatus |
-
1930
- 1930-07-21 US US469410A patent/US1907993A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4632585A (en) * | 1984-03-14 | 1986-12-30 | Kabushiki Kaisha Toshiba | Image forming apparatus |
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