FR878547A - Microphone - Google Patents

Microphone

Info

Publication number
FR878547A
FR878547A FR878547DA FR878547A FR 878547 A FR878547 A FR 878547A FR 878547D A FR878547D A FR 878547DA FR 878547 A FR878547 A FR 878547A
Authority
FR
France
Prior art keywords
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
French (fr)
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.)
Telefunken AG
Original Assignee
Telefunken AG
Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH
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 Telefunken AG, Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH filed Critical Telefunken AG
Application granted granted Critical
Publication of FR878547A publication Critical patent/FR878547A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R19/00—Electrostatic transducers
    • H04R19/04—Microphones

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR878547D 1941-01-20 1942-01-17 Microphone Expired FR878547A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE878547X 1941-01-20

Publications (1)

Publication Number Publication Date
FR878547A true FR878547A (en) 1943-01-22

Family

ID=6818576

Family Applications (1)

Application Number Title Priority Date Filing Date
FR878547D Expired FR878547A (en) 1941-01-20 1942-01-17 Microphone

Country Status (1)

Country Link
FR (1) FR878547A (en)

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