FR684293A - Film projection device - Google Patents

Film projection device

Info

Publication number: FR684293A
Authority: FR; France
Prior art keywords: projection device; film projection; film; projection
Prior art date: 1928-11-03
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

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.)

Eugen Bauer GmbH

Original Assignee

Eugen Bauer GmbH

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.)

1928-11-03

Filing date

1929-11-02

Publication date

1930-06-24

1929-11-02 Application filed by Eugen Bauer GmbH filed Critical Eugen Bauer GmbH

1930-06-24 Application granted granted Critical

1930-06-24 Publication of FR684293A publication Critical patent/FR684293A/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
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/16—Cooling; Preventing overheating

Landscapes

Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)

FR684293D 1928-11-03 1929-11-02 Film projection device Expired FR684293A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE684293X		1928-11-03

Publications (1)

Publication Number	Publication Date
FR684293A true FR684293A (en)	1930-06-24

Family

ID=6597570

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR684293D Expired FR684293A (en)	1928-11-03	1929-11-02	Film projection device

Country Status (1)

Country	Link
FR (1)	FR684293A (en)

1929
- 1929-11-02 FR FR684293D patent/FR684293A/en not_active Expired

Similar Documents

Publication	Publication Date	Title
FR756067A (en)	1933-12-04	Cinematographic film projection device
FR684293A (en)	1930-06-24	Film projection device
FR646903A (en)	1928-11-17	Projection device
FR568627A (en)	1924-03-29	Film rewinding device
FR658123A (en)	1929-05-31	Cinematographic projection device
FR664031A (en)	1929-08-28	Cinematographic projection device
FR644324A (en)	1928-10-05	Cinematographic projection device
FR678348A (en)	1930-03-21	Cinematographic projection device
FR708001A (en)	1931-07-17	Cinematographic projection device
FR697027A (en)	1931-01-10	Cinematographic projection device
FR677628A (en)	1930-03-12	Cinematographic projection device
FR635835A (en)	1928-03-26	Relief film projection device
FR652984A (en)	1929-03-15	Projector device
FR684378A (en)	1930-06-25	Talking cinematographic device
FR712157A (en)	1931-09-26	Cinematographic projection device
FR679630A (en)	1930-04-15	Shutter for cinematographic projection device
FR665189A (en)	1929-09-16	Projection device
FR730104A (en)	1932-08-06	Cinematographic projection device
FR649025A (en)	1928-12-17	Cinematographic projection device
FR669745A (en)	1929-11-20	Cinematographic apparatus
FR667202A (en)	1929-10-14	Cinematographic apparatus
FR661569A (en)	1929-07-26	Cinematographic apparatus
FR659562A (en)	1929-07-01	Cinematographic apparatus
FR648016A (en)	1928-12-04	Cinematographic apparatus
FR667171A (en)	1929-10-14	Winding device for cinematographic films