US2984270A - Cutting and abrading tools - Google Patents
Cutting and abrading tools Download PDFInfo
- Publication number
- US2984270A US2984270A US840970A US84097059A US2984270A US 2984270 A US2984270 A US 2984270A US 840970 A US840970 A US 840970A US 84097059 A US84097059 A US 84097059A US 2984270 A US2984270 A US 2984270A
- Authority
- US
- United States
- Prior art keywords
- guide plate
- cutting
- gauge
- frame member
- drum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D45/00—Sawing machines or sawing devices with circular saw blades or with friction saw discs
- B23D45/16—Hand-held sawing devices with circular saw blades
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D67/00—Filing or rasping machines or devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q9/00—Arrangements for supporting or guiding portable metal-working machines or apparatus
- B23Q9/0014—Portable machines provided with or cooperating with guide means supported directly by the workpiece during action
- B23Q9/0028—Portable machines provided with or cooperating with guide means supported directly by the workpiece during action the guide means being fixed only on the machine
Definitions
- the invention relates more particularly to attachments for ting drum which enables the combination to be used for ⁇ cutting to a desired depth and width in a Work piecezproviding. two flat surfaces at right angles.
- the invention accordingly provides an attachment comprising a frame member adapted to be secured to a' portable electric motor about the output shaft thereof, a U ⁇ shaped depth-of-cut gauge adapted to embrace a cutting drum secured o'nthe shaft, the gauge being supported on the frame member for pivotal movement about an axis parallel to the shaft and providing a flat part parallel tothe pivot axis to slide on a work piece, means to clamp the' gauge in adjusted positions on the frame member and an adjustable guide plate adjustable on the frame and providing a at surface perpendicular to the pivot axis to slidel on a ⁇ flat surface of a work piece perpendicular to the'rst-mentioned surface thereof, whereby the gauge and guide plate function, respectively, as depth-of-cut and ⁇ width-of-cut determining elements.
- Fig. 1 is a perspective view of the attachment
- Fig. 2 is a perspective view of the attachment assembled with a cutting drum and portable drill mo'tor and in use to rabbet a piece of wood, and
- Fig. 3 is a perspective view of a modification of the embodiment of Figs. 1 and 2 in use with a cutting drum and drill motor to cut a round piece of wood.
- the attachment comprises a frame member 1 in the form of a hat plate formed with a central aperture 1a, a slit 2 and a pair of outwardly projecting ears 3, 4 on either side of the slit which are curled over to locate a bolt 5 with its axis in the plane of the plate.
- the frame member 1 is intended for use with a portable electric drill motor D of the kind having a projecting boss B about the output shaft S, and is assembled with the mo'tor by slipping the boss through the aperture 1a as far as it will go and tightening a nut 6 on the bolt 5 to close the slit 2 slightly and thereby clamp the member 1 about the boss.
- the frame member has a bolt hole on one side of the central aperture 1a through which a bolt 8 extends and an arcuate slot 9 centered on the bolt ho'le at the other side of the aperture.
- the horizontal guide plate embracesI a 2" drum C (Fig. 2) having cuttingI teeth indicated at T formed over its cylindrical surface and provided with means (not shown) securing it to the output shaft S of the motor D.
- the drum may be made by wrapping into cylindrical formation a suitable length of cutting strip such as disclosed in United States Patent No'. 2,769,225 issued May 17, 1955, to Booth, turning in theedges, and securing one turned-in edge to a disc by which the drum is supported on the shaft.
- the horizontal guide plate 12 is adjustable between a ⁇ position in which the drum C just fails to project beyond the lower surface of the plate and a second position in which it projects by the maximum usable amount.
- a dat arcuate strip 25 having its ends 26, 27 bent out strip 25 clears the cutting drum C in all positions of thev horizontal guide plate 12 and is adjustable along the axial length ofthe drum from end to end thereof.
- An integral finger 32 on the bight 33 of the U formed by the horizontalV guide plate 12 extends inwardly thereof parallel to but above the plane of the legs 15, 16;
- This finger is located such as to extend within the cutting ⁇ drum C without fouling it in all positions of theA horizontal guide plate 1-2. This finger 32 helps the clearance l of shavings from the. inside of the drum ⁇ yC.
- the legss 15, 16' ofA the horizontal guide plate 124 carry stampedon scales 35, 36.
- the ends of the vertical guide plate carry ears 37, ⁇
- the verticali guide plate 29 is set so that the drum C can engage the: wood over the desired width and the horizontal guide: plate 12 is set to allow the drum to cut to the desired. depth such that, with the horizontal guide plate engaging: the top edge of the plank and the vertical guide plate the ⁇ side thereof, the combination can be moved steadily along the plank.
- the attachment can be usedv for planing by setting back the vertical guide plate 29..
- the invention can also be applied to small circular saws driven by portable electric drill motors.
- the apparatus shown in Figures 1 and 2 can be modified in dimensions to cooperate with a small circular saw (say 45 diameter) mounted on the motor shaft in place of the cutting drum C. Cuts of any desired depth can be made by suitable adjustment of the horizontal guide plate on the frame member, and these cuts can be made at any desired distance from the edge of a block of wood by suitable setting of the vertical guide plate 29.
- rabbets can be cut by working with the horizontal guide plate rst against the top and then against the side of the block.
- an attachment secured to the casing said attachment including a frame member mounted on the output end of the output shaft, in a plane normal to the axis of the motor, said frame member having an arcuate slot in one side edge thereof, a U-shaped depth-of-cut gauge pivotally supported by one of its legs at the other side edge of the frame member, and having its other leg adjustably supported by means disposed in the arcuate slot, whereby this gauge and the frame member are disposed in mutually perpendicular planes, the legs of the gauge being provided with parallel, elongated slots, an arcuate guide plate adjustably supported by means disposed in these slots, beneath the gauge and in a plane parallel to that of the frame member, whereby the gauge and guide plate function, respectively, as depth-of-cut and Width-of-cut determining elements.
- arcuate guide plate has its extremities bent at right angles to the central portion of the plate, said extremities being in sliding contact with the legs of the gauge, and said extremities of the guide plate carrying extensions projecting at right angles both to said central portion of the guide plate and to the plane containing said extremities which extensions engage the sides of the gauge to maintain the guide plate in parallelism with the frame member during sliding of said guide plate.
- the cylindrical cutting element is hollow, open-ended and formed of cutting strip with cutting edges and through holes in front of each cutting edge
- the U-shaped depthofcut gauge carries a tongue projecting inwardly thereof from the bight of the U, and said tongue extends within the cutting element to promote removal therefrom of shavings cut by said cutting edges and discharged through said holes.
- an attachment adapted to be secured to the casing, said attachment including a frame member to be secured to the casing about the output shaft in a plane normal to the axis thereof, a depth-ofecut gauge defining a pair of coplaner legs connected at one end and being pivotally supported by one of its legs at one side of the frame member and having its other leg adjustably secured to the other side of the frame member, whereby the gauge and the frame member are disposed in mutually perpendicular planes, an arcuate guide plate having its extremities bent out into a plane at right angles to the central portion of the guide plate which extremities slidiugly engage and are guided by the legs of the gauge whereby the guide plate is maintained in parallelism to the frame member, and means releasably securing said extremities of the guide plate to said legs of the gauge, whereby the gauge and guide plate function, respectively, as depth-of-cut and Wid
- the frame member is a plate having a central aperture receiving a boss about the motor shaft and a slit extends from the central aperture to the periphery of said member, and said member carries means for closing said slit whereby to clamp the member about said boss- 6.
- the legs of the depth-of-cut gauge are slotted and the releasable securing means for the guide plate comprise a pair of threaded elements extending through the slots and through apertuers in said extremities.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling, Drilling, And Turning Of Wood (AREA)
Description
May 16, 1961 J. C. ABBERLEY ET AL CUTTING AND ABRADING TOOLS Filed Sept. 18, 1959 May 16, 1961 1. c. ABBERLEY ET AL 2,984,270
CUTTING AND ABRADING TooLs Filed Sept. 18, 1959 2 Sheets-Sheet 2 United States Pate-nt CUTTING AND ABRADING TOOLS John C. Abberley, Solihull, and Geoffrey Wincott Beech, Wombourne, England, assignors to Simmonds Aero-l cessories Limited, near Pontypridd, Wales, a British company Filed Sept. 18, 1959, Ser. No. 840,970 Claims priority, application Great Britain Sept. 9, 1959` 6 Claims. (Cl. 144134) This invention relates to cutting and abrading tools. of the rotatabletype driven by portable electric'motors;
the invention relates more particularly to attachments for ting drum which enables the combination to be used for` cutting to a desired depth and width in a Work piecezproviding. two flat surfaces at right angles.
The invention accordingly provides an attachment comprising a frame member adapted to be secured to a' portable electric motor about the output shaft thereof, a U` shaped depth-of-cut gauge adapted to embrace a cutting drum secured o'nthe shaft, the gauge being supported on the frame member for pivotal movement about an axis parallel to the shaft and providing a flat part parallel tothe pivot axis to slide on a work piece, means to clamp the' gauge in adjusted positions on the frame member and an adjustable guide plate adjustable on the frame and providing a at surface perpendicular to the pivot axis to slidel on a` flat surface of a work piece perpendicular to the'rst-mentioned surface thereof, whereby the gauge and guide plate function, respectively, as depth-of-cut and` width-of-cut determining elements.
One embodiment of the invention will now be described by way of example with reference to the accompanying drawings in which:
Fig. 1 is a perspective view of the attachment;
Fig. 2 is a perspective view of the attachment assembled with a cutting drum and portable drill mo'tor and in use to rabbet a piece of wood, and
Fig. 3 is a perspective view of a modification of the embodiment of Figs. 1 and 2 in use with a cutting drum and drill motor to cut a round piece of wood.
Referring to Figs. 1 and 2 of the drawings, the attachment comprises a frame member 1 in the form of a hat plate formed with a central aperture 1a, a slit 2 and a pair of outwardly projecting ears 3, 4 on either side of the slit which are curled over to locate a bolt 5 with its axis in the plane of the plate. The frame member 1 is intended for use with a portable electric drill motor D of the kind having a projecting boss B about the output shaft S, and is assembled with the mo'tor by slipping the boss through the aperture 1a as far as it will go and tightening a nut 6 on the bolt 5 to close the slit 2 slightly and thereby clamp the member 1 about the boss. The frame member has a bolt hole on one side of the central aperture 1a through which a bolt 8 extends and an arcuate slot 9 centered on the bolt ho'le at the other side of the aperture.
A horizontal guide plate designated generally 12 in the ICC frame members; the other bent-up end 18 receives in the tapped hole 20 thereof a bolt 21 passing through the arcuate slot 9 in the frame members. Tightening the two bolts 8, 21 allows the horizontal guide plate to be clamped? in any angular position o'ver the range defined by the' extent of the arcuate slot 9. The horizontal guide plate embracesI a 2" drum C (Fig. 2) having cuttingI teeth indicated at T formed over its cylindrical surface and provided with means (not shown) securing it to the output shaft S of the motor D. The drum may be made by wrapping into cylindrical formation a suitable length of cutting strip such as disclosed in United States Patent No'. 2,769,225 issued May 17, 1955, to Booth, turning in theedges, and securing one turned-in edge to a disc by which the drum is supported on the shaft.
The horizontal guide plate 12 is adjustable between a` position in which the drum C just fails to project beyond the lower surface of the plate and a second position in which it projects by the maximum usable amount.
A dat arcuate strip 25 having its ends 26, 27 bent out strip 25 clears the cutting drum C in all positions of thev horizontal guide plate 12 and is adjustable along the axial length ofthe drum from end to end thereof.
An integral finger 32 on the bight 33 of the U formed by the horizontalV guide plate 12 extends inwardly thereof parallel to but above the plane of the legs 15, 16;,the
finger is located such as to extend within the cutting` drum C without fouling it in all positions of theA horizontal guide plate 1-2. This finger 32 helps the clearance l of shavings from the. inside of the drum` yC.
To;- facilitateadjustment of! the vertical guide plate 29 thelegs 15, 16' ofA the horizontal guide plate 124 carry stampedon scales 35, 36. To guide the vertical guide plate 29 in movement along the horizontal guide plate 12, the ends of the vertical guide plate carry ears 37,`
38 which engage the outside edges of the legs 15, 16.
If the combination of drill motor D, cutting drum C and attachment is to be used for rabbeting the edge off a plank P, for example, as shown in Fig. 2, the verticali guide plate 29 is set so that the drum C can engage the: wood over the desired width and the horizontal guide: plate 12 is set to allow the drum to cut to the desired. depth such that, with the horizontal guide plate engaging: the top edge of the plank and the vertical guide plate the` side thereof, the combination can be moved steadily along the plank. In a similar way the attachment can be usedv for planing by setting back the vertical guide plate 29.. In a modification of the invention shown in Fig. 3y
the horizontal and vertical guide plates 12, 29 are removed from the mount 1 and replaced by a J-shaped bolt 40 having the extremity of its longer arm 41 threaded and provided with a shoulder 42, the extremity being.A
secured by a nut (not shown) in the slot 9 in the frame` member 1, so that the longer arm 41 extends perpendicucontrol of the tool; the bolt is particularly useful on curved work.
The invention can also be applied to small circular saws driven by portable electric drill motors. Thus the apparatus shown in Figures 1 and 2 can be modified in dimensions to cooperate with a small circular saw (say 45 diameter) mounted on the motor shaft in place of the cutting drum C. Cuts of any desired depth can be made by suitable adjustment of the horizontal guide plate on the frame member, and these cuts can be made at any desired distance from the edge of a block of wood by suitable setting of the vertical guide plate 29. Thus rabbets can be cut by working with the horizontal guide plate rst against the top and then against the side of the block.
. We claim:
1. In a motor-operated hand tool having a casing and an output shaft provided with a cylindrical cutting element, an attachment secured to the casing, said attachment including a frame member mounted on the output end of the output shaft, in a plane normal to the axis of the motor, said frame member having an arcuate slot in one side edge thereof, a U-shaped depth-of-cut gauge pivotally supported by one of its legs at the other side edge of the frame member, and having its other leg adjustably supported by means disposed in the arcuate slot, whereby this gauge and the frame member are disposed in mutually perpendicular planes, the legs of the gauge being provided with parallel, elongated slots, an arcuate guide plate adjustably supported by means disposed in these slots, beneath the gauge and in a plane parallel to that of the frame member, whereby the gauge and guide plate function, respectively, as depth-of-cut and Width-of-cut determining elements.
2. The combination according to claim 1, wherein the arcuate guide plate has its extremities bent at right angles to the central portion of the plate, said extremities being in sliding contact with the legs of the gauge, and said extremities of the guide plate carrying extensions projecting at right angles both to said central portion of the guide plate and to the plane containing said extremities which extensions engage the sides of the gauge to maintain the guide plate in parallelism with the frame member during sliding of said guide plate.
3. The combination as claimed n claim 1, wherein the cylindrical cutting element is hollow, open-ended and formed of cutting strip with cutting edges and through holes in front of each cutting edge, the U-shaped depthofcut gauge carries a tongue projecting inwardly thereof from the bight of the U, and said tongue extends within the cutting element to promote removal therefrom of shavings cut by said cutting edges and discharged through said holes.
4. For a motor-operated hand tool having a casing and output shaft and being provided with a cylindrical cutting element, an attachment adapted to be secured to the casing, said attachment including a frame member to be secured to the casing about the output shaft in a plane normal to the axis thereof, a depth-ofecut gauge defining a pair of coplaner legs connected at one end and being pivotally supported by one of its legs at one side of the frame member and having its other leg adjustably secured to the other side of the frame member, whereby the gauge and the frame member are disposed in mutually perpendicular planes, an arcuate guide plate having its extremities bent out into a plane at right angles to the central portion of the guide plate which extremities slidiugly engage and are guided by the legs of the gauge whereby the guide plate is maintained in parallelism to the frame member, and means releasably securing said extremities of the guide plate to said legs of the gauge, whereby the gauge and guide plate function, respectively, as depth-of-cut and Width-of-cut determining elements.
5. The combination according to claim 4, wherein the frame member is a plate having a central aperture receiving a boss about the motor shaft and a slit extends from the central aperture to the periphery of said member, and said member carries means for closing said slit whereby to clamp the member about said boss- 6. The combination claimed in claim 4, wherein the legs of the depth-of-cut gauge are slotted and the releasable securing means for the guide plate comprise a pair of threaded elements extending through the slots and through apertuers in said extremities.
References Cited in the le of this patent UNITED STATES PATENTS 733,744 Raetting July 14, 1903 787,532 McCreery Apr. 18, 1905 1,271,618 Reese July 9, 1918 1,780,174 Crowe Nov. 4, 1930 1,883,392 Moll Oct. 18, 1932 2,635,655 Linstead Apr. 21, 1953 2,705,513 Moeller Apr. 5, 1955 2,771,104 Saxe Nov. 20, 1956 FOREIGN PATENTS 544,756 France July 3, 1922
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2984270X | 1959-09-09 |
Publications (1)
Publication Number | Publication Date |
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US2984270A true US2984270A (en) | 1961-05-16 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US840970A Expired - Lifetime US2984270A (en) | 1959-09-09 | 1959-09-18 | Cutting and abrading tools |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0044354A2 (en) * | 1980-07-23 | 1982-01-27 | Black & Decker Inc. | Combination guard and rabbeting depth gauge associated with power planer |
US4363343A (en) * | 1980-09-24 | 1982-12-14 | Black & Decker Inc. | Combination guard and rabbeting depth gauge associated with power planer |
DE3318621C1 (en) * | 1983-05-21 | 1984-08-23 | Festo-Maschinenfabrik Gottlieb Stoll, 7300 Esslingen | Manual machine for the grinding, derusting, polishing, brushing or the like of workpieces |
EP2679359A1 (en) * | 2012-06-25 | 2014-01-01 | C. & E. Fein GmbH | Depth stop for an oscillating tool |
ITUB20152146A1 (en) * | 2015-07-14 | 2017-01-14 | Brevetti Montolit S P A | DEVICE FOR THE BEVELING OF TILES EDGES |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US733744A (en) * | 1903-01-23 | 1903-07-14 | Alfred W H Raettig | Wood-carving machine. |
US787532A (en) * | 1904-08-11 | 1905-04-18 | Robert S Mccreery | Portable handsaw. |
US1271618A (en) * | 1916-07-17 | 1918-07-09 | Frank Reese | Portable grooving-tool. |
FR544756A (en) * | 1920-12-23 | 1922-09-29 | Siemens Schuckertwerke Gmbh | Hand-held circular saw serving as a saw for making lines |
US1780174A (en) * | 1928-01-16 | 1930-11-04 | Stanley Works | Portable power saw |
US1883392A (en) * | 1931-04-15 | 1932-10-18 | Moll Edwin | Power driven mechanic's hand tool |
US2635655A (en) * | 1952-02-29 | 1953-04-21 | Linstead Gilbert | Adjustable mounting assembly for motor-driven, hand-operated shaping tools |
US2705513A (en) * | 1953-10-12 | 1955-04-05 | Peel L Moeller | Power tool attachment for cutting kerf for weatherstripping |
US2771104A (en) * | 1955-06-03 | 1956-11-20 | Raymond J Saxe | Planer attachment for electric drills or the like |
-
1959
- 1959-09-18 US US840970A patent/US2984270A/en not_active Expired - Lifetime
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US733744A (en) * | 1903-01-23 | 1903-07-14 | Alfred W H Raettig | Wood-carving machine. |
US787532A (en) * | 1904-08-11 | 1905-04-18 | Robert S Mccreery | Portable handsaw. |
US1271618A (en) * | 1916-07-17 | 1918-07-09 | Frank Reese | Portable grooving-tool. |
FR544756A (en) * | 1920-12-23 | 1922-09-29 | Siemens Schuckertwerke Gmbh | Hand-held circular saw serving as a saw for making lines |
US1780174A (en) * | 1928-01-16 | 1930-11-04 | Stanley Works | Portable power saw |
US1883392A (en) * | 1931-04-15 | 1932-10-18 | Moll Edwin | Power driven mechanic's hand tool |
US2635655A (en) * | 1952-02-29 | 1953-04-21 | Linstead Gilbert | Adjustable mounting assembly for motor-driven, hand-operated shaping tools |
US2705513A (en) * | 1953-10-12 | 1955-04-05 | Peel L Moeller | Power tool attachment for cutting kerf for weatherstripping |
US2771104A (en) * | 1955-06-03 | 1956-11-20 | Raymond J Saxe | Planer attachment for electric drills or the like |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0044354A2 (en) * | 1980-07-23 | 1982-01-27 | Black & Decker Inc. | Combination guard and rabbeting depth gauge associated with power planer |
EP0044354A3 (en) * | 1980-07-23 | 1982-09-01 | Black & Decker Inc. | Combination guard and rabbeting depth gauge associated with power planer |
US4363343A (en) * | 1980-09-24 | 1982-12-14 | Black & Decker Inc. | Combination guard and rabbeting depth gauge associated with power planer |
DE3318621C1 (en) * | 1983-05-21 | 1984-08-23 | Festo-Maschinenfabrik Gottlieb Stoll, 7300 Esslingen | Manual machine for the grinding, derusting, polishing, brushing or the like of workpieces |
EP2679359A1 (en) * | 2012-06-25 | 2014-01-01 | C. & E. Fein GmbH | Depth stop for an oscillating tool |
ITUB20152146A1 (en) * | 2015-07-14 | 2017-01-14 | Brevetti Montolit S P A | DEVICE FOR THE BEVELING OF TILES EDGES |
EP3117957A1 (en) | 2015-07-14 | 2017-01-18 | Brevetti Montolit S.P.A. | Device for trimming the edges of tiles |
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