AU712232A - Improvements in electric signalling apparatus - Google Patents

Improvements in electric signalling apparatus

Info

Publication number
AU712232A
AU712232A AU7122/32A AU712232A AU712232A AU 712232 A AU712232 A AU 712232A AU 7122/32 A AU7122/32 A AU 7122/32A AU 712232 A AU712232 A AU 712232A AU 712232 A AU712232 A AU 712232A
Authority
AU
Australia
Prior art keywords
signalling apparatus
electric signalling
electric
signalling
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
AU7122/32A
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.)
General Electric Co
Original Assignee
General Electric Co
Filing date
Publication date
Application filed by General Electric Co filed Critical General Electric Co
Publication of AU712232A publication Critical patent/AU712232A/en
Expired legal-status Critical Current

Links

AU7122/32A 1932-04-26 Improvements in electric signalling apparatus Expired AU712232A (en)

Publications (1)

Publication Number Publication Date
AU712232A true AU712232A (en) 1933-03-02

Family

ID=

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