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FR752933A - Sound recording device on film - Google Patents

Sound recording device on film

Info

Publication number
FR752933A
FR752933A FR752933DA FR752933A FR 752933 A FR752933 A FR 752933A FR 752933D A FR752933D A FR 752933DA FR 752933 A FR752933 A FR 752933A
Authority
FR
France
Prior art keywords
film
recording device
sound recording
sound
recording
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
Maurice Florat
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 filed Critical
Application granted granted Critical
Publication of FR752933A publication Critical patent/FR752933A/en
Expired legal-status Critical Current

Links

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
FR752933D 1932-07-11 1932-07-11 Sound recording device on film Expired FR752933A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR752933T 1932-07-11

Publications (1)

Publication Number Publication Date
FR752933A true FR752933A (en) 1933-10-03

Family

ID=9160407

Family Applications (1)

Application Number Title Priority Date Filing Date
FR752933D Expired FR752933A (en) 1932-07-11 1932-07-11 Sound recording device on film

Country Status (1)

Country Link
FR (1) FR752933A (en)

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