AU143686B2 - Improvements in or relating to electric signalling systems - Google Patents

Improvements in or relating to electric signalling systems

Info

Publication number
AU143686B2
AU143686B2 AU20806/48A AU2080648A AU143686B2 AU 143686 B2 AU143686 B2 AU 143686B2 AU 20806/48 A AU20806/48 A AU 20806/48A AU 2080648 A AU2080648 A AU 2080648A AU 143686 B2 AU143686 B2 AU 143686B2
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
AU20806/48A
Other versions
AU2080648A (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 AU2080648A publication Critical patent/AU2080648A/en
Publication of AU143686B2 publication Critical patent/AU143686B2/en
Expired legal-status Critical Current

Links

AU20806/48A 1948-05-21 Improvements in or relating to electric signalling systems Expired AU143686B2 (en)

Publications (2)

Publication Number Publication Date
AU2080648A AU2080648A (en) 1948-06-24
AU143686B2 true AU143686B2 (en) 1948-06-24

Family

ID=

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