FR632512A - - Google Patents

Info

Publication number
FR632512A
FR632512A FR632512DA FR632512A FR 632512 A FR632512 A FR 632512A FR 632512D A FR632512D A FR 632512DA FR 632512 A FR632512 A FR 632512A
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 FR632512A publication Critical patent/FR632512A/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
    • H04R7/00—Diaphragms for electromechanical transducers; Cones

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR632512D Expired FR632512A (cg-RX-API-DMAC7.html)

Publications (1)

Publication Number Publication Date
FR632512A true FR632512A (cg-RX-API-DMAC7.html) 1928-01-11

Family

ID=1541599

Family Applications (1)

Application Number Title Priority Date Filing Date
FR632512D Expired FR632512A (cg-RX-API-DMAC7.html)

Country Status (1)

Country Link
FR (1) FR632512A (cg-RX-API-DMAC7.html)

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