FR710892A - Improvements to cinematographic devices - Google Patents

Improvements to cinematographic devices

Info

Publication number
FR710892A
FR710892A FR710892DA FR710892A FR 710892 A FR710892 A FR 710892A FR 710892D A FR710892D A FR 710892DA FR 710892 A FR710892 A FR 710892A
Authority
FR
France
Prior art keywords
cinematographic
devices
cinematographic 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
Hendrik Van Der Schalie
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 FR710892A publication Critical patent/FR710892A/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)
FR710892D 1930-06-25 1931-01-31 Improvements to cinematographic devices Expired FR710892A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB710892X 1930-06-25

Publications (1)

Publication Number Publication Date
FR710892A true FR710892A (en) 1931-08-31

Family

ID=10494336

Family Applications (1)

Application Number Title Priority Date Filing Date
FR710892D Expired FR710892A (en) 1930-06-25 1931-01-31 Improvements to cinematographic devices

Country Status (1)

Country Link
FR (1) FR710892A (en)

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