FR549205A - Method and apparatus for cooling films - Google Patents

Method and apparatus for cooling films

Info

Publication number
FR549205A
FR549205A FR549205DA FR549205A FR 549205 A FR549205 A FR 549205A FR 549205D A FR549205D A FR 549205DA FR 549205 A FR549205 A FR 549205A
Authority
FR
France
Prior art keywords
cooling films
films
cooling
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
Arthur Braunstain
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 FR549205A publication Critical patent/FR549205A/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)
FR549205D 1922-02-16 1922-03-22 Method and apparatus for cooling films Expired FR549205A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE549205X 1922-02-16

Publications (1)

Publication Number Publication Date
FR549205A true FR549205A (en) 1923-02-05

Family

ID=6562223

Family Applications (1)

Application Number Title Priority Date Filing Date
FR549205D Expired FR549205A (en) 1922-02-16 1922-03-22 Method and apparatus for cooling films

Country Status (1)

Country Link
FR (1) FR549205A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2943534A (en) * 1956-08-18 1960-07-05 Kamera & Kinowerke Dresden Veb Film projector device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2943534A (en) * 1956-08-18 1960-07-05 Kamera & Kinowerke Dresden Veb Film projector device

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