FR1139243A - Improvements to projection devices - Google Patents

Improvements to projection devices

Info

Publication number
FR1139243A
FR1139243A FR1139243DA FR1139243A FR 1139243 A FR1139243 A FR 1139243A FR 1139243D A FR1139243D A FR 1139243DA FR 1139243 A FR1139243 A FR 1139243A
Authority
FR
France
Prior art keywords
projection devices
projection
devices
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
Octave Py
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 FR1139243A publication Critical patent/FR1139243A/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)
FR1139243D 1955-05-14 1955-05-14 Improvements to projection devices Expired FR1139243A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1139243T 1955-05-14

Publications (1)

Publication Number Publication Date
FR1139243A true FR1139243A (en) 1957-06-26

Family

ID=9641625

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1139243D Expired FR1139243A (en) 1955-05-14 1955-05-14 Improvements to projection devices

Country Status (1)

Country Link
FR (1) FR1139243A (en)

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