FR2112427A1 - - Google Patents

Info

Publication number
FR2112427A1
FR2112427A1 FR7139429A FR7139429A FR2112427A1 FR 2112427 A1 FR2112427 A1 FR 2112427A1 FR 7139429 A FR7139429 A FR 7139429A FR 7139429 A FR7139429 A FR 7139429A FR 2112427 A1 FR2112427 A1 FR 2112427A1
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.)
Withdrawn
Application number
FR7139429A
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.)
TELDEC Telefunken Decca Schallplatten GmbH
Original Assignee
TELDEC Telefunken Decca Schallplatten GmbH
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 TELDEC Telefunken Decca Schallplatten GmbH filed Critical TELDEC Telefunken Decca Schallplatten GmbH
Publication of FR2112427A1 publication Critical patent/FR2112427A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2017/00—Carriers for sound or information
    • B29L2017/001—Carriers of records containing fine grooves or impressions, e.g. disc records for needle playback, cylinder records
    • B29L2017/003—Records or discs

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
FR7139429A 1970-11-03 1971-11-03 Withdrawn FR2112427A1 (OSRAM)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2053837A DE2053837C2 (de) 1970-11-03 1970-11-03 Verfahren zum Einprägen einer modulierten Rillenspirale in einen Informationsträger

Publications (1)

Publication Number Publication Date
FR2112427A1 true FR2112427A1 (OSRAM) 1972-06-16

Family

ID=5786929

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7139429A Withdrawn FR2112427A1 (OSRAM) 1970-11-03 1971-11-03

Country Status (9)

Country Link
US (1) US3747390A (OSRAM)
AT (1) AT324014B (OSRAM)
BE (1) BE774623A (OSRAM)
CH (1) CH535645A (OSRAM)
DE (1) DE2053837C2 (OSRAM)
FR (1) FR2112427A1 (OSRAM)
IT (1) IT941363B (OSRAM)
NL (1) NL7115022A (OSRAM)
SE (1) SE366245B (OSRAM)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4113897A (en) * 1973-01-29 1978-09-12 Rca Corporation Smooth groove formation method employing spin coating of negative replica of inscribed disc
JPS5597929A (en) * 1979-01-19 1980-07-25 Matsushita Electric Ind Co Ltd Production of flat plate-shaped body

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3052586A (en) * 1954-10-11 1962-09-04 Jack G Brown Method and apparatus for the manufacture of phonograph records
US3072519A (en) * 1958-08-29 1963-01-08 Allied Record Mfg Co Method of making phonograph record blanks from composite material
US3442990A (en) * 1967-08-07 1969-05-06 Alan Phillipson Method of embossing gramophone discs

Also Published As

Publication number Publication date
CH535645A (de) 1973-04-15
DE2053837C2 (de) 1974-01-24
SE366245B (OSRAM) 1974-04-22
NL7115022A (OSRAM) 1972-05-05
BE774623A (fr) 1972-02-14
US3747390A (en) 1973-07-24
IT941363B (it) 1973-03-01
AT324014B (de) 1975-08-11
DE2053837B1 (de) 1972-03-09

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Legal Events

Date Code Title Description
RE Withdrawal of published application