FR774574A - Perfectionnements aux disques de phonographes - Google Patents

Perfectionnements aux disques de phonographes

Info

Publication number
FR774574A
FR774574A FR774574DA FR774574A FR 774574 A FR774574 A FR 774574A FR 774574D A FR774574D A FR 774574DA FR 774574 A FR774574 A FR 774574A
Authority
FR
France
Prior art keywords
phonograph records
phonograph
records
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
English (en)
Inventor
Hubert Ernest Moore
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 FR774574A publication Critical patent/FR774574A/fr
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
FR774574D 1933-06-15 1934-06-15 Perfectionnements aux disques de phonographes Expired FR774574A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB774574X 1933-06-15

Publications (1)

Publication Number Publication Date
FR774574A true FR774574A (fr) 1934-12-08

Family

ID=10497430

Family Applications (1)

Application Number Title Priority Date Filing Date
FR774574D Expired FR774574A (fr) 1933-06-15 1934-06-15 Perfectionnements aux disques de phonographes

Country Status (1)

Country Link
FR (1) FR774574A (fr)

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