AU215689B2 - Improvements relating to automatic telephone exchange systems andthe like - Google Patents

Improvements relating to automatic telephone exchange systems andthe like

Info

Publication number
AU215689B2
AU215689B2 AU24798/57A AU2479857A AU215689B2 AU 215689 B2 AU215689 B2 AU 215689B2 AU 24798/57 A AU24798/57 A AU 24798/57A AU 2479857 A AU2479857 A AU 2479857A AU 215689 B2 AU215689 B2 AU 215689B2
Authority
AU
Australia
Prior art keywords
telephone exchange
improvements relating
automatic telephone
exchange systems
andthe
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
AU24798/57A
Other versions
AU2479857A (en
Inventor
Edward Flood John
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.)
Siemens Edison Swan Ltd
Original Assignee
Siemens Edison Swan Ltd
Filing date
Publication date
Application filed by Siemens Edison Swan Ltd filed Critical Siemens Edison Swan Ltd
Application granted granted Critical
Publication of AU215689B2 publication Critical patent/AU215689B2/en
Publication of AU2479857A publication Critical patent/AU2479857A/en
Expired legal-status Critical Current

Links

AU24798/57A 1957-01-23 Improvements relating to automatic telephone exchange systems andthe like Expired AU215689B2 (en)

Publications (2)

Publication Number Publication Date
AU215689B2 true AU215689B2 (en) 1957-07-25
AU2479857A AU2479857A (en) 1957-07-25

Family

ID=

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