BE490492A - - Google Patents

Info

Publication number
BE490492A
BE490492A BE490492DA BE490492A BE 490492 A BE490492 A BE 490492A BE 490492D A BE490492D A BE 490492DA BE 490492 A BE490492 A BE 490492A
Authority
BE
Belgium
Prior art keywords
relay
contact
relays
group
station
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE490492A publication Critical patent/BE490492A/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/001—Two-way communication systems between a limited number of parties

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
BE490492D BE490492A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Publications (1)

Publication Number Publication Date
BE490492A true BE490492A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Family

ID=135189

Family Applications (1)

Application Number Title Priority Date Filing Date
BE490492D BE490492A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Country Status (1)

Country Link
BE (1) BE490492A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

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