FR767420A - - Google Patents

Info

Publication number
FR767420A
FR767420A FR767420DA FR767420A FR 767420 A FR767420 A FR 767420A FR 767420D A FR767420D A FR 767420DA FR 767420 A FR767420 A FR 767420A
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
Other languages
French (fr)
Publication date
Application granted granted Critical
Publication of FR767420A publication Critical patent/FR767420A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R11/00—Transducers of moving-armature or moving-core type
    • H04R11/08—Gramophone pick-ups using a stylus; Recorders using a stylus

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR767420D Expired FR767420A (US08063081-20111122-C00044.png)

Publications (1)

Publication Number Publication Date
FR767420A true FR767420A (US08063081-20111122-C00044.png) 1934-07-16

Family

ID=1551429

Family Applications (1)

Application Number Title Priority Date Filing Date
FR767420D Expired FR767420A (US08063081-20111122-C00044.png)

Country Status (1)

Country Link
FR (1) FR767420A (US08063081-20111122-C00044.png)

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