AU1154452A - Improvements in or relating to telephone or like signalling systems - Google Patents

Improvements in or relating to telephone or like signalling systems

Info

Publication number
AU1154452A
AU1154452A AU11544/52A AU1154452A AU1154452A AU 1154452 A AU1154452 A AU 1154452A AU 11544/52 A AU11544/52 A AU 11544/52A AU 1154452 A AU1154452 A AU 1154452A AU 1154452 A AU1154452 A AU 1154452A
Authority
AU
Australia
Prior art keywords
telephone
relating
signalling systems
signalling
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
AU11544/52A
Other versions
AU161863B2 (en
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 AU1154452A publication Critical patent/AU1154452A/en
Publication of AU161863B2 publication Critical patent/AU161863B2/en
Expired legal-status Critical Current

Links

AU11544/52A 1952-07-25 Improvements in or relating to telephone or like signalling systems Expired AU161863B2 (en)

Publications (2)

Publication Number Publication Date
AU1154452A true AU1154452A (en) 1952-09-25
AU161863B2 AU161863B2 (en) 1952-09-25

Family

ID=

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