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AU2136229A - Improvements relating to electric signalling and control systems - Google Patents

Improvements relating to electric signalling and control systems

Info

Publication number
AU2136229A
AU2136229A AU21362/29A AU2136229A AU2136229A AU 2136229 A AU2136229 A AU 2136229A AU 21362/29 A AU21362/29 A AU 21362/29A AU 2136229 A AU2136229 A AU 2136229A AU 2136229 A AU2136229 A AU 2136229A
Authority
AU
Australia
Prior art keywords
control systems
improvements relating
electric signalling
signalling
electric
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
AU21362/29A
Inventor
bothof England William Herbert Grinsted and Stanley Arthur Byard
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
Publication of AU2136229A publication Critical patent/AU2136229A/en
Expired legal-status Critical Current

Links

AU21362/29A 1929-07-22 Improvements relating to electric signalling and control systems Expired AU2136229A (en)

Publications (1)

Publication Number Publication Date
AU2136229A true AU2136229A (en) 1930-03-04

Family

ID=

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