FR41031E - Sound film - Google Patents

Sound film

Info

Publication number
FR41031E
FR41031E FR41031DA FR41031E FR 41031 E FR41031 E FR 41031E FR 41031D A FR41031D A FR 41031DA FR 41031 E FR41031 E FR 41031E
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)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
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 by Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR41031E publication Critical patent/FR41031E/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
FR41031D 1931-07-16 1931-07-16 Sound film Expired FR41031E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR41031T 1931-07-16

Publications (1)

Publication Number Publication Date
FR41031E true FR41031E (en) 1932-10-20

Family

ID=8677232

Family Applications (1)

Application Number Title Priority Date Filing Date
FR41031D Expired FR41031E (en) 1931-07-16 1931-07-16 Sound film

Country Status (1)

Country Link
FR (1) FR41031E (en)

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