FR472442A - Improvements to cinematographs - Google Patents

Improvements to cinematographs

Info

Publication number: FR472442A
Authority: FR; France
Prior art keywords: cinematographs
Prior art date: 1914-02-21
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

Inventor

Nicholas Power

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.)

1914-02-21

Filing date

1914-02-21

Publication date

1914-12-04

1914-02-21 Application filed by Individual filed Critical Individual

1914-12-04 Application granted granted Critical

1914-12-04 Publication of FR472442A publication Critical patent/FR472442A/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
- G03B21/18—Fire preventing or extinguishing

Landscapes

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

FR472442D 1914-02-21 1914-02-21 Improvements to cinematographs Expired FR472442A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
FR472442T		1914-02-21

Publications (1)

Publication Number	Publication Date
FR472442A true FR472442A (en)	1914-12-04

Family

ID=1510616

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR472442D Expired FR472442A (en)	1914-02-21	1914-02-21	Improvements to cinematographs

Country Status (1)

Country	Link
FR (1)	FR472442A (en)

1914
- 1914-02-21 FR FR472442D patent/FR472442A/en not_active Expired

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