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AU201046B2 - Improvements in or relating to electrical signalling apparatus - Google Patents
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AU201046B2 - Improvements in or relating to electrical signalling apparatus - Google Patents

Improvements in or relating to electrical signalling apparatus

Info

Publication number
AU201046B2
AU201046B2 AU2043/54A AU204354A AU201046B2 AU 201046 B2 AU201046 B2 AU 201046B2 AU 2043/54 A AU2043/54 A AU 2043/54A AU 204354 A AU204354 A AU 204354A AU 201046 B2 AU201046 B2 AU 201046B2
Authority
AU
Australia
Prior art keywords
relating
signalling apparatus
electrical signalling
electrical
signalling
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
AU2043/54A
Other versions
AU204354A (en
Inventor
Otto Felix and Herbert Cyril Spencer Michael
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 AU201046B2 publication Critical patent/AU201046B2/en
Publication of AU204354A publication Critical patent/AU204354A/en
Expired legal-status Critical Current

Links

AU2043/54A 1954-07-29 Improvements in or relating to electrical signalling apparatus Expired AU201046B2 (en)

Publications (2)

Publication Number Publication Date
AU201046B2 true AU201046B2 (en) 1955-02-03
AU204354A AU204354A (en) 1955-02-03

Family

ID=

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