BE354603A - - Google Patents

Info

Publication number
BE354603A
BE354603A BE354603DA BE354603A BE 354603 A BE354603 A BE 354603A BE 354603D A BE354603D A BE 354603DA BE 354603 A BE354603 A BE 354603A
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 BE354603A publication Critical patent/BE354603A/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
    • H04R13/00—Transducers having an acoustic diaphragm of magnetisable material directly co-acting with electromagnet
    • H04R13/02—Telephone receivers

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
BE354603D 1927-10-01 BE354603A (cg-RX-API-DMAC10.html)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE661145X 1927-10-01

Publications (1)

Publication Number Publication Date
BE354603A true BE354603A (cg-RX-API-DMAC10.html)

Family

ID=20314339

Family Applications (1)

Application Number Title Priority Date Filing Date
BE354603D BE354603A (cg-RX-API-DMAC10.html) 1927-10-01

Country Status (2)

Country Link
BE (1) BE354603A (cg-RX-API-DMAC10.html)
FR (1) FR661145A (cg-RX-API-DMAC10.html)

Also Published As

Publication number Publication date
FR661145A (fr) 1929-07-22

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