FR504982A - Perfectionnements aux appareils cinématographiques - Google Patents

Perfectionnements aux appareils cinématographiques

Info

Publication number
FR504982A
FR504982A FR504982A FR504982DA FR504982A FR 504982 A FR504982 A FR 504982A FR 504982 A FR504982 A FR 504982A FR 504982D A FR504982D A FR 504982DA FR 504982 A FR504982 A FR 504982A
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
FR504982A
Other languages
English (en)
Inventor
Harry Rickard Thompson
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.)
HARRY RICKARD THOMPSON
Original Assignee
HARRY RICKARD THOMPSON
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 HARRY RICKARD THOMPSON filed Critical HARRY RICKARD THOMPSON
Application granted granted Critical
Publication of FR504982A publication Critical patent/FR504982A/fr
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
    • G03B21/30—Details adapted to collapse or fold, e.g. for portability
    • 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)
FR504982A 1919-10-16 1919-10-16 Perfectionnements aux appareils cinématographiques Expired FR504982A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR504982T 1919-10-16

Publications (1)

Publication Number Publication Date
FR504982A true FR504982A (fr) 1920-07-20

Family

ID=8908173

Family Applications (1)

Application Number Title Priority Date Filing Date
FR504982A Expired FR504982A (fr) 1919-10-16 1919-10-16 Perfectionnements aux appareils cinématographiques

Country Status (1)

Country Link
FR (1) FR504982A (fr)

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