FR737251A - Improvements in the manufacture of phonograph records - Google Patents

Improvements in the manufacture of phonograph records

Info

Publication number
FR737251A
FR737251A FR737251DA FR737251A FR 737251 A FR737251 A FR 737251A FR 737251D A FR737251D A FR 737251DA FR 737251 A FR737251 A FR 737251A
Authority
FR
France
Prior art keywords
manufacture
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
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 FR737251A publication Critical patent/FR737251A/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
FR737251D 1931-05-29 1932-05-18 Improvements in the manufacture of phonograph records Expired FR737251A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US737251XA 1931-05-29 1931-05-29

Publications (1)

Publication Number Publication Date
FR737251A true FR737251A (en) 1932-12-09

Family

ID=22115424

Family Applications (1)

Application Number Title Priority Date Filing Date
FR737251D Expired FR737251A (en) 1931-05-29 1932-05-18 Improvements in the manufacture of phonograph records

Country Status (1)

Country Link
FR (1) FR737251A (en)

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