AU593842A - Improvements relating to railway signalling systems - Google Patents

Improvements relating to railway signalling systems

Info

Publication number
AU593842A
AU593842A AU5938/42A AU593842A AU593842A AU 593842 A AU593842 A AU 593842A AU 5938/42 A AU5938/42 A AU 5938/42A AU 593842 A AU593842 A AU 593842A AU 593842 A AU593842 A AU 593842A
Authority
AU
Australia
Prior art keywords
improvements relating
signalling systems
railway signalling
railway
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
AU5938/42A
Other versions
AU117832B2 (en
Inventor
Howard Nicholson Frank
Filing date
Publication date
Application filed filed Critical
Application granted granted Critical
Publication of AU593842A publication Critical patent/AU593842A/en
Publication of AU117832B2 publication Critical patent/AU117832B2/en
Expired legal-status Critical Current

Links

AU5938/42A 1942-07-03 Improvements relating to railway signalling systems Expired AU117832B2 (en)

Publications (2)

Publication Number Publication Date
AU593842A true AU593842A (en) 1943-12-16
AU117832B2 AU117832B2 (en) 1943-12-16

Family

ID=

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