AU225437A - Improvements in or relating to electric signalling systems - Google Patents

Improvements in or relating to electric signalling systems

Info

Publication number
AU225437A
AU225437A AU2254/37A AU225437A AU225437A AU 225437 A AU225437 A AU 225437A AU 2254/37 A AU2254/37 A AU 2254/37A AU 225437 A AU225437 A AU 225437A AU 225437 A AU225437 A AU 225437A
Authority
AU
Australia
Prior art keywords
relating
signalling systems
electric signalling
electric
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
AU2254/37A
Other versions
AU104122B2 (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.)
Nokia Services Ltd
Original Assignee
Standard Telephone and Cables Pty Ltd
Filing date
Publication date
Application filed by Standard Telephone and Cables Pty Ltd filed Critical Standard Telephone and Cables Pty Ltd
Application granted granted Critical
Publication of AU225437A publication Critical patent/AU225437A/en
Publication of AU104122B2 publication Critical patent/AU104122B2/en
Expired legal-status Critical Current

Links

AU2254/37A 1937-06-03 Improvements in or relating to electric signalling systems Expired AU104122B2 (en)

Publications (2)

Publication Number Publication Date
AU225437A true AU225437A (en) 1938-06-16
AU104122B2 AU104122B2 (en) 1938-06-16

Family

ID=

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