FR482269A - Improvements to cinematographic projection devices - Google Patents

Improvements to cinematographic projection devices

Info

Publication number
FR482269A
FR482269A FR482269DA FR482269A FR 482269 A FR482269 A FR 482269A FR 482269D A FR482269D A FR 482269DA FR 482269 A FR482269 A FR 482269A
Authority
FR
France
Prior art keywords
projection devices
cinematographic projection
cinematographic
devices
projection
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
Henry Riegel Evans
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 FR482269A publication Critical patent/FR482269A/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
    • G03B21/40—Eliminating or reducing effect of flicker

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR482269D 1915-07-30 1916-07-13 Improvements to cinematographic projection devices Expired FR482269A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB482269X 1915-07-30

Publications (1)

Publication Number Publication Date
FR482269A true FR482269A (en) 1917-03-08

Family

ID=1519287

Family Applications (1)

Application Number Title Priority Date Filing Date
FR482269D Expired FR482269A (en) 1915-07-30 1916-07-13 Improvements to cinematographic projection devices

Country Status (1)

Country Link
FR (1) FR482269A (en)

Similar Documents

Publication Publication Date Title
FR482269A (en) Improvements to cinematographic projection devices
FR467399A (en) Improvements to cinematographic devices
FR478065A (en) Improvements to cinematographic devices
FR521621A (en) Improvements to cinematographic devices
FR482783A (en) Improvements to cinematographic devices
FR486391A (en) Improvements to cinematographic devices
FR455977A (en) Improvements to cinematographic devices
FR459580A (en) Improvements to cinematographic devices
FR459582A (en) Improvements to cinematographic devices
FR470085A (en) Improvements to cinematographic devices
FR484240A (en) Improvements to cinematographic devices
FR492631A (en) Improvements to cinematographic devices
FR479566A (en) Improvements to cash-triggered dispensing devices
FR483069A (en) Improvements to plansichters
FR470665A (en) Improvements to cinematographic projectors
FR510250A (en) Improvements to cinematographic projection devices
FR474578A (en) Improvements to projection devices
FR453030A (en) Improvements to cinematographic devices
FR461495A (en) Improvements to cinematographic devices
FR432915A (en) Improvements to cinematographic projection rooms
FR477805A (en) Improvements to cameras
FR514169A (en) Improvements relating to shutters for cinematographic devices
FR479817A (en) Improvements to refrigeration devices
FR518177A (en) Improvements to refrigeration devices
FR427880A (en) Improvements to cinematograph projectors