FR768625A - Phonographic disc recording and hearing apparatus - Google Patents

Phonographic disc recording and hearing apparatus

Info

Publication number
FR768625A
FR768625A FR768625DA FR768625A FR 768625 A FR768625 A FR 768625A FR 768625D A FR768625D A FR 768625DA FR 768625 A FR768625 A FR 768625A
Authority
FR
France
Prior art keywords
disc recording
hearing apparatus
phonographic disc
phonographic
hearing
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
Paul Durand
Umberto Galli
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 FR768625A publication Critical patent/FR768625A/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
    • G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
    • G11B17/02—Details
    • G11B17/022—Positioning or locking of single discs
    • G11B17/028—Positioning or locking of single discs of discs rotating during transducing operation
    • G11B17/0282—Positioning or locking of single discs of discs rotating during transducing operation by means provided on the turntable
FR768625D 1933-05-02 1933-05-02 Phonographic disc recording and hearing apparatus Expired FR768625A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR768625T 1933-05-02

Publications (1)

Publication Number Publication Date
FR768625A true FR768625A (en) 1934-08-10

Family

ID=9184329

Family Applications (1)

Application Number Title Priority Date Filing Date
FR768625D Expired FR768625A (en) 1933-05-02 1933-05-02 Phonographic disc recording and hearing apparatus

Country Status (1)

Country Link
FR (1) FR768625A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2369648A1 (en) * 1976-11-02 1978-05-26 Ibm AUTOMATIC CENTERING DISCS AND MEMORY UNIT CONTAINING SUCH DISCS

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2369648A1 (en) * 1976-11-02 1978-05-26 Ibm AUTOMATIC CENTERING DISCS AND MEMORY UNIT CONTAINING SUCH DISCS

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