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FR503987A - Perfectionnements aux cinématographes - Google Patents

Perfectionnements aux cinématographes

Info

Publication number
FR503987A
FR503987A FR503987A FR503987DA FR503987A FR 503987 A FR503987 A FR 503987A FR 503987 A FR503987 A FR 503987A FR 503987D A FR503987D A FR 503987DA FR 503987 A FR503987 A FR 503987A
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
FR503987A
Other languages
English (en)
Inventor
John Henry Stillwaggon
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.)
JOHN HENRY STILLWAGGON
Original Assignee
JOHN HENRY STILLWAGGON
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 JOHN HENRY STILLWAGGON filed Critical JOHN HENRY STILLWAGGON
Application granted granted Critical
Publication of FR503987A publication Critical patent/FR503987A/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
    • G03B21/32—Details specially adapted for motion-picture projection
    • 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
    • G03B21/54—Accessories

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR503987A 1919-09-18 1919-09-18 Perfectionnements aux cinématographes Expired FR503987A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR503987T 1919-09-18

Publications (1)

Publication Number Publication Date
FR503987A true FR503987A (fr) 1920-06-22

Family

ID=8907473

Family Applications (1)

Application Number Title Priority Date Filing Date
FR503987A Expired FR503987A (fr) 1919-09-18 1919-09-18 Perfectionnements aux cinématographes

Country Status (1)

Country Link
FR (1) FR503987A (fr)

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