NL185041C - DEVICE FOR RECORDING AND PLAYING BACK OF AUDIO INFORMATION ON, RESPECTIVELY OFF, A MAGNETIC SHEET. - Google Patents

DEVICE FOR RECORDING AND PLAYING BACK OF AUDIO INFORMATION ON, RESPECTIVELY OFF, A MAGNETIC SHEET.

Info

Publication number
NL185041C
NL185041C NLAANVRAGE7513831,A NL185041DA NL185041C NL 185041 C NL185041 C NL 185041C NL 185041D A NL185041D A NL 185041DA NL 185041 C NL185041 C NL 185041C
Authority
NL
Netherlands
Prior art keywords
recording
audio information
magnetic sheet
playing back
playing
Prior art date
Application number
NLAANVRAGE7513831,A
Other languages
Dutch (nl)
Original Assignee
Gakken Co Ltd
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.)
Publication of NL185041C publication Critical patent/NL185041C/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • C—CHEMISTRY; METALLURGY
    • C30—CRYSTAL GROWTH
    • C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B15/00—Single-crystal growth by pulling from a melt, e.g. Czochralski method
    • C30B15/20—Controlling or regulating
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Computer Hardware Design (AREA)
  • Physics & Mathematics (AREA)
  • Ceramic Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Led Devices (AREA)
  • Liquid Deposition Of Substances Of Which Semiconductor Devices Are Composed (AREA)
NLAANVRAGE7513831,A 1953-03-20 DEVICE FOR RECORDING AND PLAYING BACK OF AUDIO INFORMATION ON, RESPECTIVELY OFF, A MAGNETIC SHEET. NL185041C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US750998XA 1953-03-20 1953-03-20

Publications (1)

Publication Number Publication Date
NL185041C true NL185041C (en)

Family

ID=22123535

Family Applications (1)

Application Number Title Priority Date Filing Date
NLAANVRAGE7513831,A NL185041C (en) 1953-03-20 DEVICE FOR RECORDING AND PLAYING BACK OF AUDIO INFORMATION ON, RESPECTIVELY OFF, A MAGNETIC SHEET.

Country Status (5)

Country Link
BE (1) BE527468A (en)
DE (1) DE1008416B (en)
FR (1) FR1098296A (en)
GB (1) GB750998A (en)
NL (1) NL185041C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1104074B (en) * 1957-07-30 1961-04-06 Telefunken Gmbh Method for cutting a semiconductor single crystal, e.g. B. of germanium, for semiconductor arrangements in thin slices, the cut surfaces of which are perpendicular to a desired crystal axis
NL238556A (en) * 1958-04-24

Also Published As

Publication number Publication date
DE1008416B (en) 1957-05-16
BE527468A (en)
FR1098296A (en) 1955-07-21
GB750998A (en) 1956-06-20

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