BE429572A - - Google Patents

Info

Publication number
BE429572A
BE429572A BE429572DA BE429572A BE 429572 A BE429572 A BE 429572A BE 429572D A BE429572D A BE 429572DA BE 429572 A BE429572 A BE 429572A
Authority
BE
Belgium
Prior art keywords
equipment
impedance
relay
circuit
valve
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE429572A publication Critical patent/BE429572A/fr

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M3/00Automatic or semi-automatic exchanges
    • H04M3/40Applications of speech amplifiers

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
BE429572D BE429572A (enrdf_load_stackoverflow)

Publications (1)

Publication Number Publication Date
BE429572A true BE429572A (enrdf_load_stackoverflow)

Family

ID=89734

Family Applications (1)

Application Number Title Priority Date Filing Date
BE429572D BE429572A (enrdf_load_stackoverflow)

Country Status (1)

Country Link
BE (1) BE429572A (enrdf_load_stackoverflow)

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