BE351988A - - Google Patents

Info

Publication number
BE351988A
BE351988A BE351988DA BE351988A BE 351988 A BE351988 A BE 351988A BE 351988D A BE351988D A BE 351988DA BE 351988 A BE351988 A BE 351988A
Authority
BE
Belgium
Prior art keywords
line
selection
switch
alternating current
short
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE351988A publication Critical patent/BE351988A/fr

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M3/00Automatic or semi-automatic exchanges
    • H04M3/42Systems providing special services or facilities to subscribers

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
BE351988D BE351988A (enrdf_load_stackoverflow)

Publications (1)

Publication Number Publication Date
BE351988A true BE351988A (enrdf_load_stackoverflow)

Family

ID=26825

Family Applications (1)

Application Number Title Priority Date Filing Date
BE351988D BE351988A (enrdf_load_stackoverflow)

Country Status (1)

Country Link
BE (1) BE351988A (enrdf_load_stackoverflow)

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