FR533098A - Improvements to cinematographic devices - Google Patents

Improvements to cinematographic devices

Info

Publication number
FR533098A
FR533098A FR533098DA FR533098A FR 533098 A FR533098 A FR 533098A FR 533098D A FR533098D A FR 533098DA FR 533098 A FR533098 A FR 533098A
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
Other languages
French (fr)
Inventor
Herbert Stephen Mills
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 filed Critical
Application granted granted Critical
Publication of FR533098A publication Critical patent/FR533098A/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
    • G03B21/32—Details specially adapted for motion-picture projection

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR533098D 1921-03-30 1921-03-30 Improvements to cinematographic devices Expired FR533098A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR533098T 1921-03-30

Publications (1)

Publication Number Publication Date
FR533098A true FR533098A (en) 1922-02-18

Family

ID=8924789

Family Applications (1)

Application Number Title Priority Date Filing Date
FR533098D Expired FR533098A (en) 1921-03-30 1921-03-30 Improvements to cinematographic devices

Country Status (1)

Country Link
FR (1) FR533098A (en)

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