FR524491A - Perfectionnements aux appareils cinématographiques - Google Patents

Perfectionnements aux appareils cinématographiques

Info

Publication number
FR524491A
FR524491A FR524491A FR524491DA FR524491A FR 524491 A FR524491 A FR 524491A FR 524491 A FR524491 A FR 524491A FR 524491D A FR524491D A FR 524491DA FR 524491 A FR524491 A FR 524491A
Authority
FR
France
Prior art keywords
cinematographic
devices
cinematographic devices
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
FR524491A
Other languages
English (en)
Inventor
Ugo Cassigoli
Attilio Labriola
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 FR524491A publication Critical patent/FR524491A/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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR524491A 1920-08-27 1920-08-27 Perfectionnements aux appareils cinématographiques Expired FR524491A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR524491T 1920-08-27

Publications (1)

Publication Number Publication Date
FR524491A true FR524491A (fr) 1921-09-03

Family

ID=8919332

Family Applications (1)

Application Number Title Priority Date Filing Date
FR524491A Expired FR524491A (fr) 1920-08-27 1920-08-27 Perfectionnements aux appareils cinématographiques

Country Status (1)

Country Link
FR (1) FR524491A (fr)

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