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AU112207B2 - Improvements in or relating to electrical signalling systems - Google Patents
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AU112207B2 - Improvements in or relating to electrical signalling systems - Google Patents

Improvements in or relating to electrical signalling systems

Info

Publication number
AU112207B2
AU112207B2 AU2244/40A AU224440A AU112207B2 AU 112207 B2 AU112207 B2 AU 112207B2 AU 2244/40 A AU2244/40 A AU 2244/40A AU 224440 A AU224440 A AU 224440A AU 112207 B2 AU112207 B2 AU 112207B2
Authority
AU
Australia
Prior art keywords
relating
signalling systems
electrical signalling
electrical
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
AU2244/40A
Other versions
AU224440A (en
Inventor
Spicer Crutch Leslie
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 AU224440A publication Critical patent/AU224440A/en
Publication of AU112207B2 publication Critical patent/AU112207B2/en
Expired legal-status Critical Current

Links

AU2244/40A 1940-06-05 Improvements in or relating to electrical signalling systems Expired AU112207B2 (en)

Publications (2)

Publication Number Publication Date
AU224440A AU224440A (en) 1941-01-09
AU112207B2 true AU112207B2 (en) 1941-01-09

Family

ID=

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