AU7697974A - Telephone exchanges - Google Patents

Telephone exchanges

Info

Publication number
AU7697974A
AU7697974A AU76979/74A AU7697974A AU7697974A AU 7697974 A AU7697974 A AU 7697974A AU 76979/74 A AU76979/74 A AU 76979/74A AU 7697974 A AU7697974 A AU 7697974A AU 7697974 A AU7697974 A AU 7697974A
Authority
AU
Australia
Prior art keywords
telephone exchanges
exchanges
telephone
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
AU76979/74A
Inventor
Not Given Name
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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 International Standard Electric Corp filed Critical International Standard Electric Corp
Publication of AU7697974A publication Critical patent/AU7697974A/en
Expired legal-status Critical Current

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
    • H04Q3/62—Arrangements providing connection between main exchange and sub-exchange or satellite for connecting to private branch exchanges
    • H04Q3/625—Arrangements in the private branch exchange

Landscapes

  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
AU76979/74A 1974-01-31 1974-12-31 Telephone exchanges Expired AU7697974A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB456774A GB1446691A (en) 1974-01-31 1974-01-31 Telephone exchanges

Publications (1)

Publication Number Publication Date
AU7697974A true AU7697974A (en) 1976-07-01

Family

ID=9779584

Family Applications (1)

Application Number Title Priority Date Filing Date
AU76979/74A Expired AU7697974A (en) 1974-01-31 1974-12-31 Telephone exchanges

Country Status (5)

Country Link
AU (1) AU7697974A (en)
GB (1) GB1446691A (en)
HK (1) HK23178A (en)
IE (1) IE40933B1 (en)
ZA (1) ZA747537B (en)

Also Published As

Publication number Publication date
GB1446691A (en) 1976-08-18
IE40933B1 (en) 1979-09-12
HK23178A (en) 1978-05-12
IE40933L (en) 1975-07-31
ZA747537B (en) 1975-12-31

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