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AU109967B2 - Improvements in or relating to electric signalling systems - Google Patents

Improvements in or relating to electric signalling systems

Info

Publication number
AU109967B2
AU109967B2 AU974/39A AU97439A AU109967B2 AU 109967 B2 AU109967 B2 AU 109967B2 AU 974/39 A AU974/39 A AU 974/39A AU 97439 A AU97439 A AU 97439A AU 109967 B2 AU109967 B2 AU 109967B2
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
AU974/39A
Other versions
AU97439A (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 AU109967B2 publication Critical patent/AU109967B2/en
Publication of AU97439A publication Critical patent/AU97439A/en
Expired legal-status Critical Current

Links

AU974/39A 1939-03-06 Improvements in or relating to electric signalling systems Expired AU109967B2 (en)

Publications (2)

Publication Number Publication Date
AU109967B2 true AU109967B2 (en) 1940-03-14
AU97439A AU97439A (en) 1940-03-14

Family

ID=

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