BE495866A - - Google Patents

Info

Publication number
BE495866A
BE495866A BE495866DA BE495866A BE 495866 A BE495866 A BE 495866A BE 495866D A BE495866D A BE 495866DA BE 495866 A BE495866 A BE 495866A
Authority
BE
Belgium
Prior art keywords
additional
relay
station
lamp
circuit
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE495866A publication Critical patent/BE495866A/fr

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M3/00Automatic or semi-automatic exchanges
    • H04M3/60Semi-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)
  • Monitoring And Testing Of Exchanges (AREA)
BE495866D BE495866A (OSRAM)

Publications (1)

Publication Number Publication Date
BE495866A true BE495866A (OSRAM)

Family

ID=139242

Family Applications (1)

Application Number Title Priority Date Filing Date
BE495866D BE495866A (OSRAM)

Country Status (1)

Country Link
BE (1) BE495866A (OSRAM)

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