BE495245A - - Google Patents

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Publication number
BE495245A
BE495245A BE495245DA BE495245A BE 495245 A BE495245 A BE 495245A BE 495245D A BE495245D A BE 495245DA BE 495245 A BE495245 A BE 495245A
Authority
BE
Belgium
Prior art keywords
externally accessible
matrix
terminal pairs
transformers
transmission network
Prior art date
Application number
Other languages
English (en)
Dutch (nl)
Publication of BE495245A publication Critical patent/BE495245A/nl

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M3/00Automatic or semi-automatic exchanges
    • H04M3/42Systems providing special services or facilities to subscribers
    • H04M3/56Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Coils Or Transformers For Communication (AREA)
BE495245D BE495245A (2)

Publications (1)

Publication Number Publication Date
BE495245A true BE495245A (2)

Family

ID=138789

Family Applications (1)

Application Number Title Priority Date Filing Date
BE495245D BE495245A (2)

Country Status (1)

Country Link
BE (1) BE495245A (2)

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