FR454482A - Perfectionnements aux cinématographes - Google Patents

Perfectionnements aux cinématographes

Info

Publication number
FR454482A
FR454482A FR454482DA FR454482A FR 454482 A FR454482 A FR 454482A FR 454482D A FR454482D A FR 454482DA FR 454482 A FR454482 A FR 454482A
Authority
FR
France
Prior art keywords
cinematographs
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.)
Maurice Chevillard Coulon & Cie Ste
Original Assignee
Maurice Chevillard Coulon & Cie Ste
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 Maurice Chevillard Coulon & Cie Ste filed Critical Maurice Chevillard Coulon & Cie Ste
Application granted granted Critical
Publication of FR454482A publication Critical patent/FR454482A/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
    • G03B21/18—Fire preventing or extinguishing

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR454482D 1913-02-17 1913-02-17 Perfectionnements aux cinématographes Expired FR454482A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR454482T 1913-02-17

Publications (1)

Publication Number Publication Date
FR454482A true FR454482A (fr) 1913-07-05

Family

ID=1494483

Family Applications (1)

Application Number Title Priority Date Filing Date
FR454482D Expired FR454482A (fr) 1913-02-17 1913-02-17 Perfectionnements aux cinématographes

Country Status (1)

Country Link
FR (1) FR454482A (fr)

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