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AU454155B2 - Improvements relating to telephone exchanges - Google Patents
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AU454155B2 - Improvements relating to telephone exchanges - Google Patents

Improvements relating to telephone exchanges

Info

Publication number
AU454155B2
AU454155B2 AU23135/70A AU2313570A AU454155B2 AU 454155 B2 AU454155 B2 AU 454155B2 AU 23135/70 A AU23135/70 A AU 23135/70A AU 2313570 A AU2313570 A AU 2313570A AU 454155 B2 AU454155 B2 AU 454155B2
Authority
AU
Australia
Prior art keywords
improvements relating
telephone exchanges
exchanges
telephone
relating
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
AU23135/70A
Other versions
AU2313570A (en
Inventor
Reaney Donald
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.)
Plessey Handel und Investments AG
Original Assignee
Plessey Handel und Investments 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 und Investments AG filed Critical Plessey Handel und Investments AG
Application granted granted Critical
Publication of AU454155B2 publication Critical patent/AU454155B2/en
Publication of AU2313570A publication Critical patent/AU2313570A/en
Expired legal-status Critical Current

Links

AU23135/70A 1969-12-24 1970-12-09 Improvements relating to telephone exchanges Expired AU454155B2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB62827 1969-12-24

Publications (2)

Publication Number Publication Date
AU454155B2 true AU454155B2 (en) 1972-06-15
AU2313570A AU2313570A (en) 1972-06-15

Family

ID=

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