GB718876A - Circuit arrangement for the prevention of double testing in telecommunication installations - Google Patents

Circuit arrangement for the prevention of double testing in telecommunication installations

Info

Publication number
GB718876A
GB718876A GB621/53A GB62153A GB718876A GB 718876 A GB718876 A GB 718876A GB 621/53 A GB621/53 A GB 621/53A GB 62153 A GB62153 A GB 62153A GB 718876 A GB718876 A GB 718876A
Authority
GB
United Kingdom
Prior art keywords
relay
circuits
relays
operates
circuit
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB621/53A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens and Halske AG
Siemens AG
Original Assignee
Siemens and Halske AG
Siemens AG
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.)
Filing date
Publication date
Application filed by Siemens and Halske AG, Siemens AG filed Critical Siemens and Halske AG
Publication of GB718876A publication Critical patent/GB718876A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0008—Selecting arrangements using relay selectors in the switching stages

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
GB621/53A 1952-01-10 1953-01-08 Circuit arrangement for the prevention of double testing in telecommunication installations Expired GB718876A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE718876X 1952-01-10

Publications (1)

Publication Number Publication Date
GB718876A true GB718876A (en) 1954-11-24

Family

ID=6627056

Family Applications (1)

Application Number Title Priority Date Filing Date
GB621/53A Expired GB718876A (en) 1952-01-10 1953-01-08 Circuit arrangement for the prevention of double testing in telecommunication installations

Country Status (3)

Country Link
BE (1) BE516292A (da)
FR (1) FR1069542A (da)
GB (1) GB718876A (da)

Also Published As

Publication number Publication date
BE516292A (da)
FR1069542A (fr) 1954-07-08

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