FR688288A - Improvements in sound reproduction mechanisms - Google Patents

Improvements in sound reproduction mechanisms

Info

Publication number
FR688288A
FR688288A FR688288DA FR688288A FR 688288 A FR688288 A FR 688288A FR 688288D A FR688288D A FR 688288DA FR 688288 A FR688288 A FR 688288A
Authority
FR
France
Prior art keywords
sound reproduction
reproduction mechanisms
mechanisms
sound
reproduction
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
Thomas Hugh Parker
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 FR688288A publication Critical patent/FR688288A/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
    • G11B3/44—Styli, e.g. sapphire, diamond
    • G11B3/46—Constructions or forms ; Dispositions or mountings, e.g. attachment of point to shank
FR688288D 1929-01-21 1930-01-15 Improvements in sound reproduction mechanisms Expired FR688288A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB688288X 1929-01-21

Publications (1)

Publication Number Publication Date
FR688288A true FR688288A (en) 1930-08-21

Family

ID=10492965

Family Applications (1)

Application Number Title Priority Date Filing Date
FR688288D Expired FR688288A (en) 1929-01-21 1930-01-15 Improvements in sound reproduction mechanisms

Country Status (1)

Country Link
FR (1) FR688288A (en)

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