BE372322A - - Google Patents

Info

Publication number
BE372322A
BE372322A BE372322DA BE372322A BE 372322 A BE372322 A BE 372322A BE 372322D A BE372322D A BE 372322DA BE 372322 A BE372322 A BE 372322A
Authority
BE
Belgium
Prior art keywords
relay
circuit
contacts
office
line
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE372322A publication Critical patent/BE372322A/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/60—Semi-automatic systems, i.e. in which the numerical selection of the outgoing line is under the control of an operator

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
BE372322D BE372322A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Publications (1)

Publication Number Publication Date
BE372322A true BE372322A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Family

ID=43446

Family Applications (1)

Application Number Title Priority Date Filing Date
BE372322D BE372322A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Country Status (1)

Country Link
BE (1) BE372322A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

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