FR493384A - Improvements to cinematographic devices - Google Patents

Improvements to cinematographic devices

Info

Publication number
FR493384A
FR493384A FR493384DA FR493384A FR 493384 A FR493384 A FR 493384A FR 493384D A FR493384D A FR 493384DA FR 493384 A FR493384 A FR 493384A
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)
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.)
Continsouza SA Ets
Original Assignee
Continsouza SA Ets
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 Continsouza SA Ets filed Critical Continsouza SA Ets
Application granted granted Critical
Publication of FR493384A publication Critical patent/FR493384A/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)
FR493384D 1918-11-27 1918-11-27 Improvements to cinematographic devices Expired FR493384A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR493384T 1918-11-27

Publications (1)

Publication Number Publication Date
FR493384A true FR493384A (en) 1919-08-07

Family

ID=1529140

Family Applications (1)

Application Number Title Priority Date Filing Date
FR493384D Expired FR493384A (en) 1918-11-27 1918-11-27 Improvements to cinematographic devices

Country Status (1)

Country Link
FR (1) FR493384A (en)

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