FR373685A - écran électro-magnétique pour cinématographes - Google Patents

écran électro-magnétique pour cinématographes

Info

Publication number
FR373685A
FR373685A FR373685DA FR373685A FR 373685 A FR373685 A FR 373685A FR 373685D A FR373685D A FR 373685DA FR 373685 A FR373685 A FR 373685A
Authority
FR
France
Prior art keywords
cinematographs
electro
magnetic screen
screen
magnetic
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)
Inventor
Eugene-Louis-Amedee Lertourne
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.)
EUGENE-LOUIS-AMEDEE LERTOURNE
Original Assignee
EUGENE-LOUIS-AMEDEE LERTOURNE
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 EUGENE-LOUIS-AMEDEE LERTOURNE filed Critical EUGENE-LOUIS-AMEDEE LERTOURNE
Application granted granted Critical
Publication of FR373685A publication Critical patent/FR373685A/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)
FR373685D 1907-01-18 1907-01-18 écran électro-magnétique pour cinématographes Expired FR373685A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR373685T 1907-01-18

Publications (1)

Publication Number Publication Date
FR373685A true FR373685A (fr) 1907-05-24

Family

ID=1420374

Family Applications (1)

Application Number Title Priority Date Filing Date
FR373685D Expired FR373685A (fr) 1907-01-18 1907-01-18 écran électro-magnétique pour cinématographes

Country Status (1)

Country Link
FR (1) FR373685A (fr)

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