AU218155B2 - Improvements relating to automatic telephone exchange systems - Google Patents

Improvements relating to automatic telephone exchange systems

Info

Publication number
AU218155B2
AU218155B2 AU23367/56A AU2336756A AU218155B2 AU 218155 B2 AU218155 B2 AU 218155B2 AU 23367/56 A AU23367/56 A AU 23367/56A AU 2336756 A AU2336756 A AU 2336756A AU 218155 B2 AU218155 B2 AU 218155B2
Authority
AU
Australia
Prior art keywords
telephone exchange
improvements relating
automatic telephone
exchange systems
systems
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
AU23367/56A
Other versions
AU2336756A (en
Inventor
Edward Flood and Ronald Sydney Hopkins 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 AU2336756A publication Critical patent/AU2336756A/en
Publication of AU218155B2 publication Critical patent/AU218155B2/en
Expired legal-status Critical Current

Links

AU23367/56A 1956-11-21 Improvements relating to automatic telephone exchange systems Expired AU218155B2 (en)

Publications (2)

Publication Number Publication Date
AU2336756A AU2336756A (en) 1957-05-23
AU218155B2 true AU218155B2 (en) 1957-05-23

Family

ID=

Similar Documents

Publication Publication Date Title
AU218155B2 (en) Improvements relating to automatic telephone exchange systems
AU2336756A (en) Improvements relating to automatic telephone exchange systems
AU214575B2 (en) Improvements relating to automatic exchange systems
AU214059B2 (en) Improvements relating to automatic exchange systems
AU215691B2 (en) Improvements relating to automatic telephone exchange systems
AU1490456A (en) Improvements relating to automatic exchange systems
AU1499356A (en) Improvements relating to automatic exchange systems
AU2480057A (en) Improvements relating to automatic telephone exchange systems
AU215689B2 (en) Improvements relating to automatic telephone exchange systems andthe like
AU209235B2 (en) Improvements relating to telephone systems
AU212106B2 (en) Improvements relating to automatic telephone systems
AU235048B2 (en) Improvements relating to automatic telephone exchange systems
AU216098B2 (en) Improvements in or relating to automatic telephone systems
AU212110B2 (en) Improvements in or relating to automatic telecommunication exchange
CA525903A (en) Automatic telephone system
CA523499A (en) Automatic telephone system
CA521518A (en) Automatic telephone system
CA532449A (en) Automatic telephone systems
CA524054A (en) Automatic telephone systems
AU2479857A (en) Improvements relating to automatic telephone exchange systems andthe like
AU1662056A (en) Improvements relating to telephone systems
AU226423B2 (en) Improvements relating to automatic telephone systems
AU1425555A (en) Improvements relating to automatic telephone systems
AU5148259A (en) Improvements relating to automatic telephone exchange systems
AU219145B2 (en) IMPROVEMENTS RELATING TO MULTI-METERING arrangements IN AUTOMATIC EXCHANGE SYSTEMS