FR23421E - Electric lighting device for cinematographic projection apparatus and the like - Google Patents

Electric lighting device for cinematographic projection apparatus and the like

Info

Publication number
FR23421E
FR23421E FR23421A FR23421DA FR23421E FR 23421 E FR23421 E FR 23421E FR 23421 A FR23421 A FR 23421A FR 23421D A FR23421D A FR 23421DA FR 23421 E FR23421 E FR 23421E
Authority
FR
France
Prior art keywords
lighting device
projection apparatus
electric lighting
cinematographic projection
cinematographic
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
FR23421A
Other languages
French (fr)
Inventor
Giovanni Teppati
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR23421E publication Critical patent/FR23421E/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
    • G03B21/20—Lamp housings
    • 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
    • G03B21/32—Details specially adapted for motion-picture projection

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR23421A 1920-08-12 1920-08-12 Electric lighting device for cinematographic projection apparatus and the like Expired FR23421E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR23421T 1920-08-12

Publications (1)

Publication Number Publication Date
FR23421E true FR23421E (en) 1921-11-16

Family

ID=8662161

Family Applications (1)

Application Number Title Priority Date Filing Date
FR23421A Expired FR23421E (en) 1920-08-12 1920-08-12 Electric lighting device for cinematographic projection apparatus and the like

Country Status (1)

Country Link
FR (1) FR23421E (en)

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