FR787495A - Device for the production or reproduction of photographic sound inscriptions - Google Patents

Device for the production or reproduction of photographic sound inscriptions

Info

Publication number
FR787495A
FR787495A FR787495DA FR787495A FR 787495 A FR787495 A FR 787495A FR 787495D A FR787495D A FR 787495DA FR 787495 A FR787495 A FR 787495A
Authority
FR
France
Prior art keywords
inscriptions
reproduction
production
photographic sound
photographic
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
Von Mihaly Denes
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 FR787495A publication Critical patent/FR787495A/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
FR787495D 1934-07-05 1935-03-18 Device for the production or reproduction of photographic sound inscriptions Expired FR787495A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE787495X 1934-07-05

Publications (1)

Publication Number Publication Date
FR787495A true FR787495A (en) 1935-09-23

Family

ID=6699271

Family Applications (1)

Application Number Title Priority Date Filing Date
FR787495D Expired FR787495A (en) 1934-07-05 1935-03-18 Device for the production or reproduction of photographic sound inscriptions

Country Status (1)

Country Link
FR (1) FR787495A (en)

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