BE426921A - - Google Patents

Info

Publication number
BE426921A
BE426921A BE426921DA BE426921A BE 426921 A BE426921 A BE 426921A BE 426921D A BE426921D A BE 426921DA BE 426921 A BE426921 A BE 426921A
Authority
BE
Belgium
Prior art keywords
membrane
frame
casing
earphone
receiver
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE426921A publication Critical patent/BE426921A/fr

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
    • H04R13/00—Transducers having an acoustic diaphragm of magnetisable material directly co-acting with electromagnet

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Headphones And Earphones (AREA)
BE426921D BE426921A (enExample)

Publications (1)

Publication Number Publication Date
BE426921A true BE426921A (enExample)

Family

ID=87606

Family Applications (1)

Application Number Title Priority Date Filing Date
BE426921D BE426921A (enExample)

Country Status (1)

Country Link
BE (1) BE426921A (enExample)

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