FR685471A - Improvements in sound recording processes - Google Patents

Improvements in sound recording processes

Info

Publication number
FR685471A
FR685471A FR685471DA FR685471A FR 685471 A FR685471 A FR 685471A FR 685471D A FR685471D A FR 685471DA FR 685471 A FR685471 A FR 685471A
Authority
FR
France
Prior art keywords
sound recording
recording processes
processes
sound
recording
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
Theodor Kahn
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 FR685471A publication Critical patent/FR685471A/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
    • G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
FR685471D 1928-11-27 1929-11-25 Improvements in sound recording processes Expired FR685471A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE685471X 1928-11-27

Publications (1)

Publication Number Publication Date
FR685471A true FR685471A (en) 1930-07-10

Family

ID=6597874

Family Applications (1)

Application Number Title Priority Date Filing Date
FR685471D Expired FR685471A (en) 1928-11-27 1929-11-25 Improvements in sound recording processes

Country Status (1)

Country Link
FR (1) FR685471A (en)

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