FR538299A - Perfectionnements aux gramophones - Google Patents

Perfectionnements aux gramophones

Info

Publication number
FR538299A
FR538299A FR538299DA FR538299A FR 538299 A FR538299 A FR 538299A FR 538299D A FR538299D A FR 538299DA FR 538299 A FR538299 A FR 538299A
Authority
FR
France
Prior art keywords
gramophone
refinements
gramophone refinements
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
Arthur Maitland Keays
Frank Paton-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 FR538299A publication Critical patent/FR538299A/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
FR538299D 1921-07-16 1921-07-16 Perfectionnements aux gramophones Expired FR538299A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR538299T 1921-07-16

Publications (1)

Publication Number Publication Date
FR538299A true FR538299A (fr) 1922-06-07

Family

ID=8928100

Family Applications (1)

Application Number Title Priority Date Filing Date
FR538299D Expired FR538299A (fr) 1921-07-16 1921-07-16 Perfectionnements aux gramophones

Country Status (1)

Country Link
FR (1) FR538299A (fr)

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