FR683796A - Device for winding and unwinding endless belts with perforations - Google Patents

Device for winding and unwinding endless belts with perforations

Info

Publication number
FR683796A
FR683796A FR683796DA FR683796A FR 683796 A FR683796 A FR 683796A FR 683796D A FR683796D A FR 683796DA FR 683796 A FR683796 A FR 683796A
Authority
FR
France
Prior art keywords
unwinding
perforations
winding
endless belts
endless
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
Application number
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KOLMAG AG
Original Assignee
KOLMAG AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by KOLMAG AG filed Critical KOLMAG AG
Application granted granted Critical
Publication of FR683796A publication Critical patent/FR683796A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/32—Details specially adapted for motion-picture projection

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR683796D 1929-10-08 1929-10-23 Device for winding and unwinding endless belts with perforations Expired FR683796A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE683796X 1929-10-08

Publications (1)

Publication Number Publication Date
FR683796A true FR683796A (en) 1930-06-17

Family

ID=6597460

Family Applications (1)

Application Number Title Priority Date Filing Date
FR683796D Expired FR683796A (en) 1929-10-08 1929-10-23 Device for winding and unwinding endless belts with perforations

Country Status (1)

Country Link
FR (1) FR683796A (en)

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