FR622639A - Device for unwinding an endless film - Google Patents

Device for unwinding an endless film

Info

Publication number
FR622639A
FR622639A FR622639DA FR622639A FR 622639 A FR622639 A FR 622639A FR 622639D A FR622639D A FR 622639DA FR 622639 A FR622639 A FR 622639A
Authority
FR
France
Prior art keywords
unwinding
endless film
endless
film
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)
Inventor
Albert Duverger
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 filed Critical
Application granted granted Critical
Publication of FR622639A publication Critical patent/FR622639A/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)
FR622639D 1926-02-01 1926-02-01 Device for unwinding an endless film Expired FR622639A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR622639T 1926-02-01

Publications (1)

Publication Number Publication Date
FR622639A true FR622639A (en) 1927-06-02

Family

ID=8985925

Family Applications (1)

Application Number Title Priority Date Filing Date
FR622639D Expired FR622639A (en) 1926-02-01 1926-02-01 Device for unwinding an endless film

Country Status (1)

Country Link
FR (1) FR622639A (en)

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