FR743453A - - Google Patents

Info

Publication number
FR743453A
FR743453A FR743453DA FR743453A FR 743453 A FR743453 A FR 743453A FR 743453D A FR743453D A FR 743453DA FR 743453 A FR743453 A FR 743453A
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 FR743453A publication Critical patent/FR743453A/fr
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R19/00Electrostatic transducers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR743453D Expired FR743453A (US20100268047A1-20101021-C00003.png)

Publications (1)

Publication Number Publication Date
FR743453A true FR743453A (US20100268047A1-20101021-C00003.png) 1933-03-31

Family

ID=1547708

Family Applications (1)

Application Number Title Priority Date Filing Date
FR743453D Expired FR743453A (US20100268047A1-20101021-C00003.png)

Country Status (1)

Country Link
FR (1) FR743453A (US20100268047A1-20101021-C00003.png)

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