FR904200A - Phonographic recording disc - Google Patents

Phonographic recording disc

Info

Publication number
FR904200A
FR904200A FR904200DA FR904200A FR 904200 A FR904200 A FR 904200A FR 904200D A FR904200D A FR 904200DA FR 904200 A FR904200 A FR 904200A
Authority
FR
France
Prior art keywords
recording disc
phonographic recording
phonographic
disc
recording
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Application granted granted Critical
Publication of FR904200A publication Critical patent/FR904200A/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
FR904200D 1943-01-18 1944-05-11 Phonographic recording disc Expired FR904200A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE904200X 1943-01-18

Publications (1)

Publication Number Publication Date
FR904200A true FR904200A (en) 1945-10-29

Family

ID=6861749

Family Applications (1)

Application Number Title Priority Date Filing Date
FR904200D Expired FR904200A (en) 1943-01-18 1944-05-11 Phonographic recording disc

Country Status (1)

Country Link
FR (1) FR904200A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1040274B (en) * 1955-01-11 1958-10-02 Philips Nv Method and apparatus for the production of records and material suitable for the production thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1040274B (en) * 1955-01-11 1958-10-02 Philips Nv Method and apparatus for the production of records and material suitable for the production thereof

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