FR319768A - Perfectionnements aux transmetteurs microphoniques - Google Patents

Perfectionnements aux transmetteurs microphoniques

Info

Publication number
FR319768A
FR319768A FR319768DA FR319768A FR 319768 A FR319768 A FR 319768A FR 319768D A FR319768D A FR 319768DA FR 319768 A FR319768 A FR 319768A
Authority
FR
France
Prior art keywords
microphone transmitters
transmitters
microphone
Prior art date
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
English (en)
Inventor
Pasquet
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of FR319768A publication Critical patent/FR319768A/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
    • H04R21/00—Variable-resistance transducers
    • H04R21/02—Microphones
    • H04R21/021—Microphones with granular resistance material

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR319768D 1902-03-19 1902-03-19 Perfectionnements aux transmetteurs microphoniques Expired FR319768A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR319768T 1902-03-19

Publications (1)

Publication Number Publication Date
FR319768A true FR319768A (fr) 1902-11-22

Family

ID=1370319

Family Applications (1)

Application Number Title Priority Date Filing Date
FR319768D Expired FR319768A (fr) 1902-03-19 1902-03-19 Perfectionnements aux transmetteurs microphoniques

Country Status (1)

Country Link
FR (1) FR319768A (fr)

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