FR51208E - Improvements to cinematographic projection devices - Google Patents

Improvements to cinematographic projection devices

Info

Publication number
FR51208E
FR51208E FR51208DA FR51208E FR 51208 E FR51208 E FR 51208E FR 51208D A FR51208D A FR 51208DA FR 51208 E FR51208 E FR 51208E
Authority
FR
France
Prior art keywords
projection devices
cinematographic projection
cinematographic
devices
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.)
Kodak Pathe SA
Original Assignee
Kodak Pathe 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 Kodak Pathe SA filed Critical Kodak Pathe SA
Application granted granted Critical
Publication of FR51208E publication Critical patent/FR51208E/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
    • G03B21/18—Fire preventing or extinguishing

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR51208D 1939-05-11 1939-05-11 Improvements to cinematographic projection devices Expired FR51208E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR51208T 1939-05-11

Publications (1)

Publication Number Publication Date
FR51208E true FR51208E (en) 1941-12-20

Family

ID=8686096

Family Applications (1)

Application Number Title Priority Date Filing Date
FR51208D Expired FR51208E (en) 1939-05-11 1939-05-11 Improvements to cinematographic projection devices

Country Status (1)

Country Link
FR (1) FR51208E (en)

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