FR461387A - Improvements to cinematographs - Google Patents

Improvements to cinematographs

Info

Publication number
FR461387A
FR461387A FR461387DA FR461387A FR 461387 A FR461387 A FR 461387A FR 461387D A FR461387D A FR 461387DA FR 461387 A FR461387 A FR 461387A
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
Other languages
French (fr)
Inventor
Francois-Emile Grimaud
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.)
FRANCOIS-EMILE GRIMAUD
Original Assignee
FRANCOIS-EMILE GRIMAUD
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 FRANCOIS-EMILE GRIMAUD filed Critical FRANCOIS-EMILE GRIMAUD
Application granted granted Critical
Publication of FR461387A publication Critical patent/FR461387A/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
FR461387D 1913-08-14 1913-08-14 Improvements to cinematographs Expired FR461387A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR461387T 1913-08-14

Publications (1)

Publication Number Publication Date
FR461387A true FR461387A (en) 1913-12-27

Family

ID=1500697

Family Applications (1)

Application Number Title Priority Date Filing Date
FR461387D Expired FR461387A (en) 1913-08-14 1913-08-14 Improvements to cinematographs

Country Status (1)

Country Link
FR (1) FR461387A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2570820A (en) * 1950-05-29 1951-10-09 Philips Lab Inc X-ray cone assembly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2570820A (en) * 1950-05-29 1951-10-09 Philips Lab Inc X-ray cone assembly

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