BE343075A - - Google Patents

Info

Publication number
BE343075A
BE343075A BE343075DA BE343075A BE 343075 A BE343075 A BE 343075A BE 343075D A BE343075D A BE 343075DA BE 343075 A BE343075 A BE 343075A
Authority
BE
Belgium
Prior art keywords
petals
cut
telephone
vibrating
diffusing
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE343075A publication Critical patent/BE343075A/fr

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00Diaphragms for electromechanical transducers; Cones
    • H04R7/02Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/12Non-planar diaphragms or cones

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Percussion Or Vibration Massage (AREA)
BE343075D BE343075A (ca)

Publications (1)

Publication Number Publication Date
BE343075A true BE343075A (ca)

Family

ID=19438

Family Applications (1)

Application Number Title Priority Date Filing Date
BE343075D BE343075A (ca)

Country Status (1)

Country Link
BE (1) BE343075A (ca)

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