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ZA728824B - Improvements in or relating to telephone systems - Google Patents

Improvements in or relating to telephone systems

Info

Publication number
ZA728824B
ZA728824B ZA728824A ZA728824A ZA728824B ZA 728824 B ZA728824 B ZA 728824B ZA 728824 A ZA728824 A ZA 728824A ZA 728824 A ZA728824 A ZA 728824A ZA 728824 B ZA728824 B ZA 728824B
Authority
ZA
South Africa
Prior art keywords
relating
telephone systems
telephone
systems
Prior art date
Application number
ZA728824A
Inventor
E Addington
Original Assignee
Gen Electric Co Ltd
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 Gen Electric Co Ltd filed Critical Gen Electric Co Ltd
Publication of ZA728824B publication Critical patent/ZA728824B/en

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M7/00—Arrangements for interconnection between switching centres
    • H04M7/16—Arrangements for interconnection between switching centres in systems employing carrier frequencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
ZA728824A 1971-12-20 1972-12-13 Improvements in or relating to telephone systems ZA728824B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5901071A GB1411089A (en) 1971-12-20 1971-12-20 Telephone systems

Publications (1)

Publication Number Publication Date
ZA728824B true ZA728824B (en) 1973-09-26

Family

ID=10482884

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA728824A ZA728824B (en) 1971-12-20 1972-12-13 Improvements in or relating to telephone systems

Country Status (3)

Country Link
AU (1) AU5005972A (en)
GB (1) GB1411089A (en)
ZA (1) ZA728824B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2516726A1 (en) * 1981-11-13 1983-05-20 Cit Alcatel QUADRIPOLE LIMITER OF PARASITES FOR TYPE 1 + 1 TELEPHONE TRANSMISSION SYSTEMS

Also Published As

Publication number Publication date
AU5005972A (en) 1974-06-20
GB1411089A (en) 1975-10-22

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