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FR700470A - Improvements to installations for the electrical recording of sound waves on discs, tapes, films and others - Google Patents

Improvements to installations for the electrical recording of sound waves on discs, tapes, films and others

Info

Publication number
FR700470A
FR700470A FR700470DA FR700470A FR 700470 A FR700470 A FR 700470A FR 700470D A FR700470D A FR 700470DA FR 700470 A FR700470 A FR 700470A
Authority
FR
France
Prior art keywords
installations
tapes
discs
films
sound waves
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
Cesar Parolini
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 FR700470A publication Critical patent/FR700470A/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
    • G11B25/00—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus
FR700470D 1929-11-20 1929-11-20 Improvements to installations for the electrical recording of sound waves on discs, tapes, films and others Expired FR700470A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR700470T 1929-11-20

Publications (1)

Publication Number Publication Date
FR700470A true FR700470A (en) 1931-03-02

Family

ID=9050389

Family Applications (1)

Application Number Title Priority Date Filing Date
FR700470D Expired FR700470A (en) 1929-11-20 1929-11-20 Improvements to installations for the electrical recording of sound waves on discs, tapes, films and others

Country Status (1)

Country Link
FR (1) FR700470A (en)

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