AU134514B2 - Improvements in or relating to signalling systems and apparatus for use therein - Google Patents

Improvements in or relating to signalling systems and apparatus for use therein

Info

Publication number
AU134514B2
AU134514B2 AU4686/46A AU468646A AU134514B2 AU 134514 B2 AU134514 B2 AU 134514B2 AU 4686/46 A AU4686/46 A AU 4686/46A AU 468646 A AU468646 A AU 468646A AU 134514 B2 AU134514 B2 AU 134514B2
Authority
AU
Australia
Prior art keywords
relating
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
AU4686/46A
Other versions
AU468646A (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.)
Automatic Electric Laboratories Inc
Original Assignee
Automatic Electric Laboratories Inc
Filing date
Publication date
Application filed by Automatic Electric Laboratories Inc filed Critical Automatic Electric Laboratories Inc
Application granted granted Critical
Publication of AU468646A publication Critical patent/AU468646A/en
Publication of AU134514B2 publication Critical patent/AU134514B2/en
Expired legal-status Critical Current

Links

AU4686/46A 1946-06-28 Improvements in or relating to signalling systems and apparatus for use therein Expired AU134514B2 (en)

Publications (2)

Publication Number Publication Date
AU468646A AU468646A (en) 1946-07-03
AU134514B2 true AU134514B2 (en) 1946-07-03

Family

ID=

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