FR709867A - Cinema projection device - Google Patents

Cinema projection device

Info

Publication number
FR709867A
FR709867A FR709867DA FR709867A FR 709867 A FR709867 A FR 709867A FR 709867D A FR709867D A FR 709867DA FR 709867 A FR709867 A FR 709867A
Authority
FR
France
Prior art keywords
projection device
cinema projection
cinema
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)
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.)
Pathe Cinema SA
Original Assignee
Pathe Cinema SA
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 Pathe Cinema SA filed Critical Pathe Cinema SA
Application granted granted Critical
Publication of FR709867A publication Critical patent/FR709867A/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
    • G03B21/16—Cooling; Preventing overheating

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR709867D 1931-01-22 1931-01-22 Cinema projection device Expired FR709867A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR709867T 1931-01-22

Publications (1)

Publication Number Publication Date
FR709867A true FR709867A (en) 1931-08-14

Family

ID=9069706

Family Applications (1)

Application Number Title Priority Date Filing Date
FR709867D Expired FR709867A (en) 1931-01-22 1931-01-22 Cinema projection device

Country Status (1)

Country Link
FR (1) FR709867A (en)

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