FR514363A - Perfectionnements apportés aux machines parlantes automatiques - Google Patents

Perfectionnements apportés aux machines parlantes automatiques

Info

Publication number
FR514363A
FR514363A FR514363DA FR514363A FR 514363 A FR514363 A FR 514363A FR 514363D A FR514363D A FR 514363DA FR 514363 A FR514363 A FR 514363A
Authority
FR
France
Prior art keywords
automatic speaking
speaking machines
machines
automatic
speaking
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
English (en)
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.)
Parlophone Records Ltd
Original Assignee
Gramophone 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.)
Filing date
Publication date
Application filed by Gramophone Co Ltd filed Critical Gramophone Co Ltd
Application granted granted Critical
Publication of FR514363A publication Critical patent/FR514363A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
FR514363D 1917-09-15 1918-09-14 Perfectionnements apportés aux machines parlantes automatiques Expired FR514363A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US514363XA 1917-09-15 1917-09-15

Publications (1)

Publication Number Publication Date
FR514363A true FR514363A (fr) 1921-03-09

Family

ID=21971307

Family Applications (1)

Application Number Title Priority Date Filing Date
FR514363D Expired FR514363A (fr) 1917-09-15 1918-09-14 Perfectionnements apportés aux machines parlantes automatiques

Country Status (2)

Country Link
FR (1) FR514363A (fr)
GB (1) GB514363A (fr)

Also Published As

Publication number Publication date
GB514363A (en) 1939-11-06

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