AU135411B2 - Improvements in signalling systems - Google Patents

Improvements in signalling systems

Info

Publication number
AU135411B2
AU135411B2 AU4666/46A AU466646A AU135411B2 AU 135411 B2 AU135411 B2 AU 135411B2 AU 4666/46 A AU4666/46 A AU 4666/46A AU 466646 A AU466646 A AU 466646A AU 135411 B2 AU135411 B2 AU 135411B2
Authority
AU
Australia
Prior art keywords
signalling systems
signalling
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
AU4666/46A
Other versions
AU466646A (en
Filing date
Publication date
Application filed filed Critical
Application granted granted Critical
Publication of AU466646A publication Critical patent/AU466646A/en
Publication of AU135411B2 publication Critical patent/AU135411B2/en
Expired legal-status Critical Current

Links

AU4666/46A 1946-06-27 Improvements in signalling systems Expired AU135411B2 (en)

Publications (2)

Publication Number Publication Date
AU466646A AU466646A (en) 1946-11-28
AU135411B2 true AU135411B2 (en) 1946-11-28

Family

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