FR743556A - - Google Patents

Info

Publication number
FR743556A
FR743556A FR743556DA FR743556A FR 743556 A FR743556 A FR 743556A FR 743556D A FR743556D A FR 743556DA FR 743556 A FR743556 A FR 743556A
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 FR743556A publication Critical patent/FR743556A/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; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR743556D Expired FR743556A (cg-RX-API-DMAC7.html)

Publications (1)

Publication Number Publication Date
FR743556A true FR743556A (cg-RX-API-DMAC7.html) 1933-04-01

Family

ID=1547798

Family Applications (1)

Application Number Title Priority Date Filing Date
FR743556D Expired FR743556A (cg-RX-API-DMAC7.html)

Country Status (1)

Country Link
FR (1) FR743556A (cg-RX-API-DMAC7.html)

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