BE451257A - - Google Patents

Info

Publication number
BE451257A
BE451257A BE451257DA BE451257A BE 451257 A BE451257 A BE 451257A BE 451257D A BE451257D A BE 451257DA BE 451257 A BE451257 A BE 451257A
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 BE451257A publication Critical patent/BE451257A/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)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
BE451257D 1943-06-07 BE451257A (cg-RX-API-DMAC10.html)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH235395T 1943-06-07

Publications (1)

Publication Number Publication Date
BE451257A true BE451257A (cg-RX-API-DMAC10.html)

Family

ID=4458960

Family Applications (1)

Application Number Title Priority Date Filing Date
BE451257D BE451257A (cg-RX-API-DMAC10.html) 1943-06-07

Country Status (2)

Country Link
BE (1) BE451257A (cg-RX-API-DMAC10.html)
CH (1) CH235395A (cg-RX-API-DMAC10.html)

Also Published As

Publication number Publication date
CH235395A (de) 1944-11-30

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