AU221588B2 - Improvements relating to telephone systems - Google Patents

Improvements relating to telephone systems

Info

Publication number
AU221588B2
AU221588B2 AU26142/57A AU2614257A AU221588B2 AU 221588 B2 AU221588 B2 AU 221588B2 AU 26142/57 A AU26142/57 A AU 26142/57A AU 2614257 A AU2614257 A AU 2614257A AU 221588 B2 AU221588 B2 AU 221588B2
Authority
AU
Australia
Prior art keywords
improvements relating
telephone systems
telephone
relating
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
AU26142/57A
Other versions
AU2614257A (en
Inventor
Drake and Frank Allen Stallworth Bernard
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 AU2614257A publication Critical patent/AU2614257A/en
Publication of AU221588B2 publication Critical patent/AU221588B2/en
Expired legal-status Critical Current

Links

AU26142/57A 1957-03-13 Improvements relating to telephone systems Expired AU221588B2 (en)

Publications (2)

Publication Number Publication Date
AU2614257A AU2614257A (en) 1957-09-19
AU221588B2 true AU221588B2 (en) 1957-09-19

Family

ID=

Similar Documents

Publication Publication Date Title
AU219986B2 (en) Improvements relating to telephone systems
AU221588B2 (en) Improvements relating to telephone systems
AU222606B2 (en) Improvements relating to telephone systems
AU2792057A (en) Improvements relating to telephone systems
AU2614257A (en) Improvements relating to telephone systems
AU2706457A (en) Improvements relating to telephone systems
AU226423B2 (en) Improvements relating to automatic telephone systems
AU209235B2 (en) Improvements relating to telephone systems
AU220239B2 (en) Improvements in or relating to telephone systems
CA538498A (en) Telephone systems
CA539700A (en) Telephone systems
CA546387A (en) Telephone systems
CA546624A (en) Telephone systems
AU216376B2 (en) Improvements in or relating to telecommunication systems
AU221585B2 (en) Improvements relating to keysenders ofthe kind used in telephone systems
AU215690B2 (en) Improvements relating to automatic telephone systems andthe like
AU2946857A (en) Improvements relating to automatic telephone systems
AU1662056A (en) Improvements relating to telephone systems
AU215571B2 (en) Improvements in or relating to telephone or like systems
AU3093657A (en) Improvements in or relating to telephone systems
AU2458157A (en) Improvements in or relating to telecommunication systems
CA533984A (en) Telephone system
AU215721B2 (en) Improvements in or relating to telephone systems
AU2581957A (en) Improvements relating to keysenders ofthe kind used in telephone systems
AU2479957A (en) Improvements relating to automatic telephone systems andthe like