BE344463A - - Google Patents

Info

Publication number
BE344463A
BE344463A BE344463DA BE344463A BE 344463 A BE344463 A BE 344463A BE 344463D A BE344463D A BE 344463DA BE 344463 A BE344463 A BE 344463A
Authority
BE
Belgium
Prior art keywords
relay
ringing
operator
telephone system
circuit
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE344463A publication Critical patent/BE344463A/fr

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q3/00Selecting arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Interface Circuits In Exchanges (AREA)
BE344463D BE344463A (https=)

Publications (1)

Publication Number Publication Date
BE344463A true BE344463A (https=)

Family

ID=20633

Family Applications (1)

Application Number Title Priority Date Filing Date
BE344463D BE344463A (https=)

Country Status (1)

Country Link
BE (1) BE344463A (https=)

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