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AU133281B2 - Improvements relating to electric signalling systems - Google Patents
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AU133281B2 - Improvements relating to electric signalling systems - Google Patents

Improvements relating to electric signalling systems

Info

Publication number
AU133281B2
AU133281B2 AU4245/46A AU424546A AU133281B2 AU 133281 B2 AU133281 B2 AU 133281B2 AU 4245/46 A AU4245/46 A AU 4245/46A AU 424546 A AU424546 A AU 424546A AU 133281 B2 AU133281 B2 AU 133281B2
Authority
AU
Australia
Prior art keywords
improvements 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
AU4245/46A
Other versions
AU424546A (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.)
Siemens Brothers and Co Ltd
Original Assignee
Siemens Brothers and Co Ltd
Filing date
Publication date
Application filed by Siemens Brothers and Co Ltd filed Critical Siemens Brothers and Co Ltd
Application granted granted Critical
Publication of AU424546A publication Critical patent/AU424546A/en
Publication of AU133281B2 publication Critical patent/AU133281B2/en
Expired legal-status Critical Current

Links

AU4245/46A 1946-06-13 Improvements relating to electric signalling systems Expired AU133281B2 (en)

Publications (2)

Publication Number Publication Date
AU424546A AU424546A (en) 1946-07-19
AU133281B2 true AU133281B2 (en) 1946-07-19

Family

ID=

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