BE367768A - - Google Patents

Info

Publication number
BE367768A
BE367768A BE367768DA BE367768A BE 367768 A BE367768 A BE 367768A BE 367768D A BE367768D A BE 367768DA BE 367768 A BE367768 A BE 367768A
Authority
BE
Belgium
Application number
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.)
Publication of BE367768A publication Critical patent/BE367768A/xx

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
    • 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)
  • Diaphragms For Electromechanical Transducers (AREA)
BE367768D 1929-03-02 BE367768A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL2015169X 1929-03-02

Publications (1)

Publication Number Publication Date
BE367768A true BE367768A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Family

ID=19873498

Family Applications (1)

Application Number Title Priority Date Filing Date
BE367768D BE367768A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1929-03-02

Country Status (2)

Country Link
US (1) US2015169A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BE (1) BE367768A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Also Published As

Publication number Publication date
US2015169A (en) 1935-09-24

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