FR508781A - Improvements to cinematographs - Google Patents

Improvements to cinematographs

Info

Publication number: FR508781A
Authority: FR; France
Prior art keywords: cinematographs
Prior art date: 1916-07-26
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

FR508781A

Other languages

French (fr)

Inventor

Edwin Julius Hadley

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.)

EDWIN JULIUS HADLEY

Original Assignee

EDWIN JULIUS HADLEY

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.)

1916-07-26

Filing date

1920-01-20

Publication date

1920-10-22

1920-01-20 Application filed by EDWIN JULIUS HADLEY filed Critical EDWIN JULIUS HADLEY

1920-10-22 Application granted granted Critical

1920-10-22 Publication of FR508781A publication Critical patent/FR508781A/en

Status Expired legal-status Critical Current

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
- G03B1/00—Film strip handling
- G03B1/18—Moving film strip by means which act on the film between the ends thereof
- G03B1/20—Acting means
- G03B1/34—Beaters
- 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)

FR508781A 1916-07-26 1920-01-20 Improvements to cinematographs Expired FR508781A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US508781XA	1916-07-26	1916-07-26

Publications (1)

Publication Number	Publication Date
FR508781A true FR508781A (en)	1920-10-22

Family

ID=21968044

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR508781A Expired FR508781A (en)	1916-07-26	1920-01-20	Improvements to cinematographs

Country Status (1)

Country	Link
FR (1)	FR508781A (en)

1920
- 1920-01-20 FR FR508781A patent/FR508781A/en not_active Expired

Similar Documents

Publication	Publication Date	Title
FR483807A (en)	1917-08-14	Improvements to syringes
FR493411A (en)	1919-08-08	Improvements to hydroaeroplanes
FR481376A (en)	1916-11-28	Improvements to overtalon
FR485614A (en)	1918-01-24	Improvements to phonographs
FR23046E (en)	1921-09-20	Improvements to crutches
FR490512A (en)	1919-04-26	Improvements to airplanes
FR487005A (en)	1918-05-29	Improvements to boats
FR508781A (en)	1920-10-22	Improvements to cinematographs
FR482959A (en)	1917-05-16	Improvements to cinematographs
FR481298A (en)	1916-11-16	Improvements made to bagpipes-feeders
FR485469A (en)	1918-01-15	Improvements to crutches
FR504264A (en)	1920-06-29	Improvements to taps
FR483261A (en)	1917-06-15	Improvements to stretchers
FR502680A (en)	1920-05-22	Improvements to airplanes
FR483589A (en)	1917-07-20	Improvements to economic constructions
FR483977A (en)	1917-08-23	Improvements to graphophones
FR484732A (en)	1917-10-31	Improvements to lanterns
FR482154A (en)	1917-02-27	Improvements to soaps
FR486057A (en)	1918-03-06	Improvements to gasifiers
FR488428A (en)	1918-10-08	Improvements to gasifiers
FR482090A (en)	1917-02-14	Improvements to magnetos
FR490974A (en)	1919-05-17	Improvements to magnetos
FR485725A (en)	1918-02-01	Improvements to insulators
FR520576A (en)	1921-06-28	Improvements to phonographs
FR520219A (en)	1921-06-22	Improvements to phonographs