DK120670B - Fremgangsmåde til fremstilling af lydbånd med retliniede spor. - Google Patents

Fremgangsmåde til fremstilling af lydbånd med retliniede spor.

Info

Publication number
DK120670B
DK120670B DK451467AA DK451467A DK120670B DK 120670 B DK120670 B DK 120670B DK 451467A A DK451467A A DK 451467AA DK 451467 A DK451467 A DK 451467A DK 120670 B DK120670 B DK 120670B
Authority
DK
Denmark
Prior art keywords
audio tapes
producing audio
rectilinear tracks
rectilinear
tracks
Prior art date
Application number
DK451467AA
Other languages
Danish (da)
English (en)
Inventor
C Allen
J Heine
Original Assignee
Bolt Beranek & Newman
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 Bolt Beranek & Newman filed Critical Bolt Beranek & Newman
Publication of DK120670B publication Critical patent/DK120670B/da

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D17/00—Producing carriers of records containing fine grooves or impressions, e.g. disc records for needle playback, cylinder records; Producing record discs from master stencils
    • B29D17/002—Producing phonograph records
    • 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
    • B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2883/00—Use of polymers having silicon, with or without sulfur, nitrogen, oxygen, or carbon only, in the main chain, as mould material

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing Optical Record Carriers (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Holding Or Fastening Of Disk On Rotational Shaft (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Compounds Of Iron (AREA)
DK451467AA 1967-02-03 1967-09-08 Fremgangsmåde til fremstilling af lydbånd med retliniede spor. DK120670B (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US61387367A 1967-02-03 1967-02-03

Publications (1)

Publication Number Publication Date
DK120670B true DK120670B (da) 1971-06-28

Family

ID=24459010

Family Applications (1)

Application Number Title Priority Date Filing Date
DK451467AA DK120670B (da) 1967-02-03 1967-09-08 Fremgangsmåde til fremstilling af lydbånd med retliniede spor.

Country Status (12)

Country Link
US (1) US3480281A (de)
AT (1) AT290160B (de)
BE (1) BE703263A (de)
CH (1) CH480705A (de)
DK (1) DK120670B (de)
ES (1) ES344798A1 (de)
FR (1) FR1549370A (de)
GB (1) GB1194898A (de)
LU (1) LU54578A1 (de)
NL (1) NL141678B (de)
NO (1) NO124455B (de)
SE (1) SE309670B (de)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB190606220A (en) * 1906-03-14 1906-10-25 Alexander Morris Newman Improvements in Phonographs, Graphophones and the like, and in Records therefor.
US1358949A (en) * 1915-07-15 1920-11-16 Aeolian Co Process of making sound-records
US1792159A (en) * 1929-03-13 1931-02-10 Gonzalez Honorio Conrado Disk talking-machine record
US3321208A (en) * 1965-02-08 1967-05-23 Nat Geographic Soc Phonograph book with indexing means

Also Published As

Publication number Publication date
LU54578A1 (de) 1967-12-11
NL141678B (nl) 1974-03-15
GB1194898A (en) 1970-06-17
NO124455B (de) 1972-04-17
DE1572411A1 (de) 1970-04-30
CH480705A (fr) 1969-10-31
FR1549370A (de) 1968-12-13
SE309670B (de) 1969-03-31
BE703263A (de) 1968-01-15
DE1572411B2 (de) 1972-10-05
AT290160B (de) 1971-05-25
US3480281A (en) 1969-11-25
ES344798A1 (es) 1969-01-16
NL6714724A (de) 1968-08-05

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