FR632638A - - Google Patents

Info

Publication number
FR632638A
FR632638A FR632638DA FR632638A FR 632638 A FR632638 A FR 632638A FR 632638D A FR632638D A FR 632638DA FR 632638 A FR632638 A FR 632638A
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 FR632638A publication Critical patent/FR632638A/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)
FR632638D Expired FR632638A (cg-RX-API-DMAC7.html)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE334357T

Publications (1)

Publication Number Publication Date
FR632638A true FR632638A (cg-RX-API-DMAC7.html) 1928-01-12

Family

ID=3867884

Family Applications (1)

Application Number Title Priority Date Filing Date
FR632638D Expired FR632638A (cg-RX-API-DMAC7.html)

Country Status (2)

Country Link
BE (1) BE334357A (cg-RX-API-DMAC7.html)
FR (1) FR632638A (cg-RX-API-DMAC7.html)

Also Published As

Publication number Publication date
BE334357A (cg-RX-API-DMAC7.html)

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