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BE531089A - - Google Patents
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BE531089A - - Google Patents

Info

Publication number
BE531089A
BE531089A BE531089DA BE531089A BE 531089 A BE531089 A BE 531089A BE 531089D A BE531089D A BE 531089DA BE 531089 A BE531089 A BE 531089A
Authority
BE
Belgium
Prior art keywords
relays
printing
contacts
relay
group
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE531089A publication Critical patent/BE531089A/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/26—Arrangements for supervision, monitoring or testing with means for applying test signals or for measuring
    • H04M3/28—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor
    • H04M3/32—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for lines between exchanges

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Keying Circuit Devices (AREA)
BE531089D BE531089A (sr)

Publications (1)

Publication Number Publication Date
BE531089A true BE531089A (sr)

Family

ID=163543

Family Applications (1)

Application Number Title Priority Date Filing Date
BE531089D BE531089A (sr)

Country Status (1)

Country Link
BE (1) BE531089A (sr)

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