AU111730B2 - Improvements in or relating to signal devices - Google Patents

Improvements in or relating to signal devices

Info

Publication number
AU111730B2
AU111730B2 AU324/40A AU32440A AU111730B2 AU 111730 B2 AU111730 B2 AU 111730B2 AU 324/40 A AU324/40 A AU 324/40A AU 32440 A AU32440 A AU 32440A AU 111730 B2 AU111730 B2 AU 111730B2
Authority
AU
Australia
Prior art keywords
relating
signal devices
devices
signal
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
AU324/40A
Other versions
AU32440A (en
Inventor
Johnson Scofield Theodore
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.)
Sparks-Whittington Co
Original Assignee
Sparks-Whittington Co
Filing date
Publication date
Application filed by Sparks-Whittington Co filed Critical Sparks-Whittington Co
Application granted granted Critical
Publication of AU111730B2 publication Critical patent/AU111730B2/en
Publication of AU32440A publication Critical patent/AU32440A/en
Expired legal-status Critical Current

Links

AU324/40A 1940-01-26 Improvements in or relating to signal devices Expired AU111730B2 (en)

Publications (2)

Publication Number Publication Date
AU111730B2 true AU111730B2 (en) 1940-10-24
AU32440A AU32440A (en) 1940-10-24

Family

ID=

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