GB870077A - Improvements in or relating to automatic telecommunication exchanges - Google Patents

Improvements in or relating to automatic telecommunication exchanges

Info

Publication number
GB870077A
GB870077A GB2897157A GB2897157A GB870077A GB 870077 A GB870077 A GB 870077A GB 2897157 A GB2897157 A GB 2897157A GB 2897157 A GB2897157 A GB 2897157A GB 870077 A GB870077 A GB 870077A
Authority
GB
United Kingdom
Prior art keywords
pulses
circuit
continuity
relay
free
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
GB2897157A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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
Priority to BE571150D priority Critical patent/BE571150A/xx
Application filed by Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB2897157A priority patent/GB870077A/en
Publication of GB870077A publication Critical patent/GB870077A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q3/00Selecting arrangements
    • H04Q3/42Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
    • H04Q3/54Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker in which the logic circuitry controlling the exchange is centralised

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
GB2897157A 1957-09-13 1957-09-13 Improvements in or relating to automatic telecommunication exchanges Expired GB870077A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
BE571150D BE571150A (enrdf_load_html_response) 1957-09-13
GB2897157A GB870077A (en) 1957-09-13 1957-09-13 Improvements in or relating to automatic telecommunication exchanges

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2897157A GB870077A (en) 1957-09-13 1957-09-13 Improvements in or relating to automatic telecommunication exchanges

Publications (1)

Publication Number Publication Date
GB870077A true GB870077A (en) 1961-06-14

Family

ID=10284156

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2897157A Expired GB870077A (en) 1957-09-13 1957-09-13 Improvements in or relating to automatic telecommunication exchanges

Country Status (2)

Country Link
BE (1) BE571150A (enrdf_load_html_response)
GB (1) GB870077A (enrdf_load_html_response)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4346458A (en) 1979-11-02 1982-08-24 International Business Machines Corporation I2 L Monolithically integrated storage arrangement

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4346458A (en) 1979-11-02 1982-08-24 International Business Machines Corporation I2 L Monolithically integrated storage arrangement

Also Published As

Publication number Publication date
BE571150A (enrdf_load_html_response)

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