FR620054A - Improvements to cinematographic projection devices - Google Patents

Improvements to cinematographic projection devices

Info

Publication number
FR620054A
FR620054A FR620054DA FR620054A FR 620054 A FR620054 A FR 620054A FR 620054D A FR620054D A FR 620054DA FR 620054 A FR620054 A FR 620054A
Authority
FR
France
Prior art keywords
projection devices
cinematographic projection
cinematographic
devices
projection
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
Jules Giguet
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 FR620054A publication Critical patent/FR620054A/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
    • G03B1/00—Film strip handling
    • G03B1/18—Moving film strip by means which act on the film between the ends thereof
    • G03B1/20—Acting means
    • G03B1/22—Claws or pins engaging holes in the film

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR620054D 1925-12-17 1925-12-17 Improvements to cinematographic projection devices Expired FR620054A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR620054T 1925-12-17

Publications (1)

Publication Number Publication Date
FR620054A true FR620054A (en) 1927-04-14

Family

ID=8984134

Family Applications (1)

Application Number Title Priority Date Filing Date
FR620054D Expired FR620054A (en) 1925-12-17 1925-12-17 Improvements to cinematographic projection devices

Country Status (1)

Country Link
FR (1) FR620054A (en)

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