ZA733090B - Automatic telephone exchanges - Google Patents

Automatic telephone exchanges

Info

Publication number
ZA733090B
ZA733090B ZA733090A ZA733090A ZA733090B ZA 733090 B ZA733090 B ZA 733090B ZA 733090 A ZA733090 A ZA 733090A ZA 733090 A ZA733090 A ZA 733090A ZA 733090 B ZA733090 B ZA 733090B
Authority
ZA
South Africa
Prior art keywords
automatic telephone
telephone exchanges
exchanges
automatic
telephone
Prior art date
Application number
ZA733090A
Inventor
C Jones
J Grimbly
J Carlisle
Original Assignee
Plessey Handel Investment 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 Plessey Handel Investment Ag filed Critical Plessey Handel Investment Ag
Publication of ZA733090B publication Critical patent/ZA733090B/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
    • H04Q3/54—Circuit 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)
  • Telephonic Communication Services (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
ZA733090A 1972-05-19 1973-05-07 Automatic telephone exchanges ZA733090B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2368572A GB1393156A (en) 1972-05-19 1972-05-19 Automatic telephone exchanges

Publications (1)

Publication Number Publication Date
ZA733090B true ZA733090B (en) 1974-04-24

Family

ID=10199627

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA733090A ZA733090B (en) 1972-05-19 1973-05-07 Automatic telephone exchanges

Country Status (4)

Country Link
AU (1) AU475146B2 (en)
BR (1) BR7303683D0 (en)
GB (1) GB1393156A (en)
ZA (1) ZA733090B (en)

Also Published As

Publication number Publication date
AU475146B2 (en) 1976-08-12
GB1393156A (en) 1975-05-07
AU5596173A (en) 1974-11-21
BR7303683D0 (en) 1974-07-11

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