FR721347A - Porte-couloir cinématographique à refroidissement hydraulique - Google Patents

Porte-couloir cinématographique à refroidissement hydraulique

Info

Publication number
FR721347A
FR721347A FR721347DA FR721347A FR 721347 A FR721347 A FR 721347A FR 721347D A FR721347D A FR 721347DA FR 721347 A FR721347 A FR 721347A
Authority
FR
France
Prior art keywords
cinematographic
corridor
holder
hydraulically cooled
hydraulically
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
English (en)
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.)
Zeiss Ikon AG
Original Assignee
Zeiss Ikon AG
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 Zeiss Ikon AG filed Critical Zeiss Ikon AG
Application granted granted Critical
Publication of FR721347A publication Critical patent/FR721347A/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
    • G03B21/16—Cooling; Preventing overheating

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR721347D 1931-08-13 1931-08-13 Porte-couloir cinématographique à refroidissement hydraulique Expired FR721347A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR721347T 1931-08-13

Publications (1)

Publication Number Publication Date
FR721347A true FR721347A (fr) 1932-03-02

Family

ID=9096995

Family Applications (1)

Application Number Title Priority Date Filing Date
FR721347D Expired FR721347A (fr) 1931-08-13 1931-08-13 Porte-couloir cinématographique à refroidissement hydraulique

Country Status (1)

Country Link
FR (1) FR721347A (fr)

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