FR741645A - - Google Patents

Info

Publication number
FR741645A
FR741645A FR741645DA FR741645A FR 741645 A FR741645 A FR 741645A FR 741645D A FR741645D A FR 741645DA FR 741645 A FR741645 A FR 741645A
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 FR741645A publication Critical patent/FR741645A/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
    • H04R11/00—Transducers of moving-armature or moving-core type

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR741645D Expired FR741645A (cg-RX-API-DMAC7.html)

Publications (1)

Publication Number Publication Date
FR741645A true FR741645A (cg-RX-API-DMAC7.html) 1933-02-16

Family

ID=1546151

Family Applications (1)

Application Number Title Priority Date Filing Date
FR741645D Expired FR741645A (cg-RX-API-DMAC7.html)

Country Status (1)

Country Link
FR (1) FR741645A (cg-RX-API-DMAC7.html)

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