AU104748B2 - Improvements in light signals - Google Patents

Improvements in light signals

Info

Publication number
AU104748B2
AU104748B2 AU2542/37A AU254237A AU104748B2 AU 104748 B2 AU104748 B2 AU 104748B2 AU 2542/37 A AU2542/37 A AU 2542/37A AU 254237 A AU254237 A AU 254237A AU 104748 B2 AU104748 B2 AU 104748B2
Authority
AU
Australia
Prior art keywords
light signals
signals
light
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
AU2542/37A
Other versions
AU254237A (en
Filing date
Publication date
Application granted granted Critical
Publication of AU254237A publication Critical patent/AU254237A/en
Publication of AU104748B2 publication Critical patent/AU104748B2/en
Application filed filed Critical
Expired legal-status Critical Current

Links

AU2542/37A 1938-08-05 Improvements in light signals Expired AU104748B2 (en)

Publications (2)

Publication Number Publication Date
AU254237A AU254237A (en) 1933-08-13
AU104748B2 true AU104748B2 (en) 1933-08-13

Family

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