FR733273A - Enregistrement photographique des sons - Google Patents

Enregistrement photographique des sons

Info

Publication number: FR733273A
Authority: FR; France
Prior art keywords: sounds; photographic recording; photographic; recording
Prior art date: 1931-05-18
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

Paul-Eugene-Rene Cremailh

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.)

1931-05-18

Filing date

1931-05-18

Publication date

1932-10-03

1931-05-18 Application filed filed Critical

1932-10-03 Application granted granted Critical

1932-10-03 Publication of FR733273A publication Critical patent/FR733273A/fr

Status Expired legal-status Critical Current

Classifications

- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor

FR733273D 1931-05-18 1931-05-18 Enregistrement photographique des sons Expired FR733273A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
FR733273T		1931-05-18

Publications (1)

Publication Number	Publication Date
FR733273A true FR733273A (fr)	1932-10-03

Family

ID=9124908

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR733273D Expired FR733273A (fr)	1931-05-18	1931-05-18	Enregistrement photographique des sons

Country Status (1)

Country	Link
FR (1)	FR733273A (fr)

1931
- 1931-05-18 FR FR733273D patent/FR733273A/fr not_active Expired

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