FR2219479B3 - - Google Patents

Info

Publication number
FR2219479B3
FR2219479B3 FR7406204A FR7406204A FR2219479B3 FR 2219479 B3 FR2219479 B3 FR 2219479B3 FR 7406204 A FR7406204 A FR 7406204A FR 7406204 A FR7406204 A FR 7406204A FR 2219479 B3 FR2219479 B3 FR 2219479B3
Authority
FR
France
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
FR7406204A
Other versions
FR2219479A1 (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.)
TED Bildplatten AG AEG Telefunken Teldec
Original Assignee
TED Bildplatten AG AEG Telefunken Teldec
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
Priority claimed from DE19732308891 external-priority patent/DE2308891C3/de
Application filed by TED Bildplatten AG AEG Telefunken Teldec filed Critical TED Bildplatten AG AEG Telefunken Teldec
Publication of FR2219479A1 publication Critical patent/FR2219479A1/fr
Application granted granted Critical
Publication of FR2219479B3 publication Critical patent/FR2219479B3/fr
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
    • G11B3/56—Sharpening
FR7406204A 1973-02-23 1974-02-22 Expired FR2219479B3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732308891 DE2308891C3 (de) 1973-02-23 Verfahren zur Herstellung von Matrizen zum Prägen von Rillen in Folien, insbesondere in Schleiffolien für das Anschleifen von Abtastern für Bildplatten

Publications (2)

Publication Number Publication Date
FR2219479A1 FR2219479A1 (fr) 1974-09-20
FR2219479B3 true FR2219479B3 (fr) 1976-12-03

Family

ID=5872792

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7406204A Expired FR2219479B3 (fr) 1973-02-23 1974-02-22

Country Status (10)

Country Link
US (1) US3956075A (fr)
JP (1) JPS49119601A (fr)
AT (1) AT336914B (fr)
BE (1) BE811297A (fr)
CH (1) CH567769A5 (fr)
FR (1) FR2219479B3 (fr)
GB (1) GB1457350A (fr)
IT (1) IT1008289B (fr)
NL (1) NL7401654A (fr)
SE (1) SE391053B (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2821297C3 (de) * 1978-05-16 1981-09-17 Teldec Telefunken-Decca-Schallplatten Gmbh, 2000 Hamburg Verfahren zur Herstellung eines plattenförmigen Informationsträgers
US4394341A (en) * 1982-02-01 1983-07-19 Rca Corporation Method to center and separate electroformed replicas from a matrix
US4431487A (en) * 1983-06-30 1984-02-14 Rca Corporation Matrixing apparatus and method for use in the manufacture of molded records
US4479853A (en) * 1984-03-29 1984-10-30 Rca Corporation Method for the manufacture of record stampers

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE637310C (de) * 1936-10-26 Fedor Geske Verfahren zum Herstellen von Schallplatten
US2092880A (en) * 1933-09-26 1937-09-14 Rca Corp Record pressing matrix
US2067502A (en) * 1934-08-16 1937-01-12 Bell Telephone Labor Inc Art of duplicating phonograph records
US3584094A (en) * 1969-01-08 1971-06-08 Pic Tur Records Inc Method of making picture-type phonograph records
JPS4932124B1 (fr) * 1970-05-25 1974-08-28
US3801476A (en) * 1972-03-01 1974-04-02 Teldec Telefunken Decca Method for improving the centering of stamping matrices

Also Published As

Publication number Publication date
IT1008289B (it) 1976-11-10
BE811297A (fr) 1974-06-17
GB1457350A (en) 1976-12-01
FR2219479A1 (fr) 1974-09-20
CH567769A5 (fr) 1975-10-15
ATA123874A (de) 1976-09-15
AT336914B (de) 1977-06-10
DE2308891A1 (de) 1974-09-05
NL7401654A (fr) 1974-08-27
DE2308891B2 (de) 1975-09-04
US3956075A (en) 1976-05-11
SE391053B (sv) 1977-01-31
JPS49119601A (fr) 1974-11-15

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Legal Events

Date Code Title Description
ST Notification of lapse