AU2807830A - Improvements in or relating to wave-signalling systems - Google Patents

Improvements in or relating to wave-signalling systems

Info

Publication number
AU2807830A
AU2807830A AU28078/30A AU2807830A AU2807830A AU 2807830 A AU2807830 A AU 2807830A AU 28078/30 A AU28078/30 A AU 28078/30A AU 2807830 A AU2807830 A AU 2807830A AU 2807830 A AU2807830 A AU 2807830A
Authority
AU
Australia
Prior art keywords
relating
wave
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
AU28078/30A
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.)
Individual
Original Assignee
Individual
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of AU2807830A publication Critical patent/AU2807830A/en
Expired legal-status Critical Current

Links

AU28078/30A 1930-07-28 Improvements in or relating to wave-signalling systems Expired AU2807830A (en)

Publications (1)

Publication Number Publication Date
AU2807830A true AU2807830A (en) 1931-08-06

Family

ID=

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