FR704009A - Sound film - Google Patents

Sound film

Info

Publication number
FR704009A
FR704009A FR704009DA FR704009A FR 704009 A FR704009 A FR 704009A FR 704009D A FR704009D A FR 704009DA FR 704009 A FR704009 A FR 704009A
Authority
FR
France
Prior art keywords
sound film
sound
film
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
Charles Schinzel
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 FR704009A publication Critical patent/FR704009A/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
FR704009D 1929-09-04 1930-09-03 Sound film Expired FR704009A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE704009X 1929-09-04

Publications (1)

Publication Number Publication Date
FR704009A true FR704009A (en) 1931-05-09

Family

ID=6615349

Family Applications (1)

Application Number Title Priority Date Filing Date
FR704009D Expired FR704009A (en) 1929-09-04 1930-09-03 Sound film

Country Status (1)

Country Link
FR (1) FR704009A (en)

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