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AU208948B2 - Improvements in or relating to telphone systems - Google Patents

Improvements in or relating to telphone systems

Info

Publication number
AU208948B2
AU208948B2 AU6892/55A AU689255A AU208948B2 AU 208948 B2 AU208948 B2 AU 208948B2 AU 6892/55 A AU6892/55 A AU 6892/55A AU 689255 A AU689255 A AU 689255A AU 208948 B2 AU208948 B2 AU 208948B2
Authority
AU
Australia
Prior art keywords
telphone
relating
systems
telphone 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
AU6892/55A
Other versions
AU689255A (en
Inventor
Thomas Baker and Victor Edmund Mann 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 AU689255A publication Critical patent/AU689255A/en
Publication of AU208948B2 publication Critical patent/AU208948B2/en
Expired legal-status Critical Current

Links

AU6892/55A 1955-02-14 Improvements in or relating to telphone systems Expired AU208948B2 (en)

Publications (2)

Publication Number Publication Date
AU689255A AU689255A (en) 1955-08-18
AU208948B2 true AU208948B2 (en) 1955-08-18

Family

ID=

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