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FR444911A - Safety mechanism for cinematographic theaters - Google Patents

Safety mechanism for cinematographic theaters

Info

Publication number
FR444911A
FR444911A FR444911DA FR444911A FR 444911 A FR444911 A FR 444911A FR 444911D A FR444911D A FR 444911DA FR 444911 A FR444911 A FR 444911A
Authority
FR
France
Prior art keywords
cinematographic
theaters
safety mechanism
safety
cinematographic theaters
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
Eduard Senff
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.)
EDUARD SENFF
Original Assignee
EDUARD SENFF
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 EDUARD SENFF filed Critical EDUARD SENFF
Application granted granted Critical
Publication of FR444911A publication Critical patent/FR444911A/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)
FR444911D 1912-06-13 1912-06-13 Safety mechanism for cinematographic theaters Expired FR444911A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR444911T 1912-06-13

Publications (1)

Publication Number Publication Date
FR444911A true FR444911A (en) 1912-10-29

Family

ID=1485852

Family Applications (1)

Application Number Title Priority Date Filing Date
FR444911D Expired FR444911A (en) 1912-06-13 1912-06-13 Safety mechanism for cinematographic theaters

Country Status (1)

Country Link
FR (1) FR444911A (en)

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