FR721656A - Disc for talking machines - Google Patents

Disc for talking machines

Info

Publication number
FR721656A
FR721656A FR721656DA FR721656A FR 721656 A FR721656 A FR 721656A FR 721656D A FR721656D A FR 721656DA FR 721656 A FR721656 A FR 721656A
Authority
FR
France
Prior art keywords
disc
talking machines
talking
machines
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
Jehan Delille De Bussac
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 FR721656A publication Critical patent/FR721656A/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
    • G11B3/68—Record carriers
    • G11B3/70—Record carriers characterised by the selection of material or structure; Processes or apparatus specially adapted for manufacturing record carriers
FR721656D 1930-11-14 1930-11-14 Disc for talking machines Expired FR721656A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR721656T 1930-11-14

Publications (1)

Publication Number Publication Date
FR721656A true FR721656A (en) 1932-03-07

Family

ID=9098220

Family Applications (1)

Application Number Title Priority Date Filing Date
FR721656D Expired FR721656A (en) 1930-11-14 1930-11-14 Disc for talking machines

Country Status (1)

Country Link
FR (1) FR721656A (en)

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