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AU112258B2 - Improvements in or relating to electric signalling systems - Google Patents

Improvements in or relating to electric signalling systems

Info

Publication number
AU112258B2
AU112258B2 AU5728/39A AU572839A AU112258B2 AU 112258 B2 AU112258 B2 AU 112258B2 AU 5728/39 A AU5728/39 A AU 5728/39A AU 572839 A AU572839 A AU 572839A AU 112258 B2 AU112258 B2 AU 112258B2
Authority
AU
Australia
Prior art keywords
relating
signalling systems
electric signalling
electric
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
AU5728/39A
Other versions
AU572839A (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.)
Nokia Services Ltd
Original Assignee
Standard Telephone and Cables Pty Ltd
Filing date
Publication date
Application filed by Standard Telephone and Cables Pty Ltd filed Critical Standard Telephone and Cables Pty Ltd
Application granted granted Critical
Publication of AU112258B2 publication Critical patent/AU112258B2/en
Publication of AU572839A publication Critical patent/AU572839A/en
Expired legal-status Critical Current

Links

AU5728/39A 1939-12-30 Improvements in or relating to electric signalling systems Expired AU112258B2 (en)

Publications (2)

Publication Number Publication Date
AU112258B2 true AU112258B2 (en) 1941-01-09
AU572839A AU572839A (en) 1941-01-09

Family

ID=

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