FR792630A - Matrices for the reproduction of phonographic recordings - Google Patents

Matrices for the reproduction of phonographic recordings

Info

Publication number
FR792630A
FR792630A FR792630DA FR792630A FR 792630 A FR792630 A FR 792630A FR 792630D A FR792630D A FR 792630DA FR 792630 A FR792630 A FR 792630A
Authority
FR
France
Prior art keywords
matrices
reproduction
phonographic
recordings
phonographic recordings
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)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Electrical Research Products Inc
Original Assignee
Electrical Research Products Inc
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 by Electrical Research Products Inc filed Critical Electrical Research Products Inc
Application granted granted Critical
Publication of FR792630A publication Critical patent/FR792630A/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
FR792630D 1934-08-16 1935-07-17 Matrices for the reproduction of phonographic recordings Expired FR792630A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US792630XA 1934-08-16 1934-08-16

Publications (1)

Publication Number Publication Date
FR792630A true FR792630A (en) 1936-01-07

Family

ID=22149440

Family Applications (1)

Application Number Title Priority Date Filing Date
FR792630D Expired FR792630A (en) 1934-08-16 1935-07-17 Matrices for the reproduction of phonographic recordings

Country Status (1)

Country Link
FR (1) FR792630A (en)

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