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AU2641157A - Improvements in or relating to telephone or like systems - Google Patents

Improvements in or relating to telephone or like systems

Info

Publication number
AU2641157A
AU2641157A AU26411/57A AU2641157A AU2641157A AU 2641157 A AU2641157 A AU 2641157A AU 26411/57 A AU26411/57 A AU 26411/57A AU 2641157 A AU2641157 A AU 2641157A AU 2641157 A AU2641157 A AU 2641157A
Authority
AU
Australia
Prior art keywords
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
AU26411/57A
Other versions
AU215571B2 (en
Inventor
Thomas Baker George
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.)
British Telecommunications Research Ltd
Original Assignee
British Telecommunications Research Ltd
Filing date
Publication date
Application filed by British Telecommunications Research Ltd filed Critical British Telecommunications Research Ltd
Application granted granted Critical
Publication of AU215571B2 publication Critical patent/AU215571B2/en
Publication of AU2641157A publication Critical patent/AU2641157A/en
Expired legal-status Critical Current

Links

AU26411/57A 1957-03-22 Improvements in or relating to telephone or like systems Expired AU215571B2 (en)

Publications (2)

Publication Number Publication Date
AU215571B2 AU215571B2 (en) 1957-09-26
AU2641157A true AU2641157A (en) 1957-09-26

Family

ID=

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