BE457012A - - Google Patents

Info

Publication number
BE457012A
BE457012A BE457012DA BE457012A BE 457012 A BE457012 A BE 457012A BE 457012D A BE457012D A BE 457012DA BE 457012 A BE457012 A BE 457012A
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 BE457012A publication Critical patent/BE457012A/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
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/08—Microphones

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
BE457012D 1943-08-28 BE457012A (cg-RX-API-DMAC7.html)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE259863X 1943-08-28

Publications (1)

Publication Number Publication Date
BE457012A true BE457012A (cg-RX-API-DMAC7.html)

Family

ID=5966915

Family Applications (1)

Application Number Title Priority Date Filing Date
BE457012D BE457012A (cg-RX-API-DMAC7.html) 1943-08-28

Country Status (3)

Country Link
BE (1) BE457012A (cg-RX-API-DMAC7.html)
CH (1) CH259863A (cg-RX-API-DMAC7.html)
FR (1) FR905352A (cg-RX-API-DMAC7.html)

Also Published As

Publication number Publication date
FR905352A (fr) 1945-12-03
CH259863A (de) 1949-02-15

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