NL95509C - - Google Patents

Info

Publication number
NL95509C
NL95509C NL95509DA NL95509C NL 95509 C NL95509 C NL 95509C NL 95509D A NL95509D A NL 95509DA NL 95509 C NL95509 C NL 95509C
Authority
NL
Netherlands
Application number
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Publication of NL95509C publication Critical patent/NL95509C/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/58—Arrangements providing connection between main exchange and sub-exchange or satellite
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/20—Testing circuits or apparatus; Circuits or apparatus for detecting, indicating, or signalling faults or troubles
    • H04Q1/22—Automatic arrangements
    • H04Q1/26—Automatic arrangements for signalling trouble in unoccupied sub-exchanges
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q5/00—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange
    • H04Q5/02—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange with direct connection for all subscribers, i.e. party-line systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
NL95509D 1951-07-04 NL95509C (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL9476A DE874471C (de) 1951-07-04 1951-07-04 Schaltungsanordnung fuer Fernsprechanlagen mit Haupt- und Unteraemtern

Publications (1)

Publication Number Publication Date
NL95509C true NL95509C (de)

Family

ID=7257997

Family Applications (1)

Application Number Title Priority Date Filing Date
NL95509D NL95509C (de) 1951-07-04

Country Status (3)

Country Link
DE (1) DE874471C (de)
IT (1) IT500212A (de)
NL (1) NL95509C (de)

Also Published As

Publication number Publication date
DE874471C (de) 1953-04-23
IT500212A (de)

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