FR700845A - Device for the projection of sound films - Google Patents

Device for the projection of sound films

Info

Publication number
FR700845A
FR700845A FR700845DA FR700845A FR 700845 A FR700845 A FR 700845A FR 700845D A FR700845D A FR 700845DA FR 700845 A FR700845 A FR 700845A
Authority
FR
France
Prior art keywords
projection
sound films
films
sound
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
Louis-Dominique-Jose Dunoyer
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 FR700845A publication Critical patent/FR700845A/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
FR700845D 1929-11-08 1929-11-08 Device for the projection of sound films Expired FR700845A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR700845T 1929-11-08

Publications (1)

Publication Number Publication Date
FR700845A true FR700845A (en) 1931-03-07

Family

ID=9051991

Family Applications (1)

Application Number Title Priority Date Filing Date
FR700845D Expired FR700845A (en) 1929-11-08 1929-11-08 Device for the projection of sound films

Country Status (1)

Country Link
FR (1) FR700845A (en)

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