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AU1930229A - Improvements in or relating to signaling devices - Google Patents

Improvements in or relating to signaling devices

Info

Publication number
AU1930229A
AU1930229A AU19302/29A AU1930229A AU1930229A AU 1930229 A AU1930229 A AU 1930229A AU 19302/29 A AU19302/29 A AU 19302/29A AU 1930229 A AU1930229 A AU 1930229A AU 1930229 A AU1930229 A AU 1930229A
Authority
AU
Australia
Prior art keywords
relating
signaling devices
signaling
devices
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
AU19302/29A
Inventor
Asen C. Gregoroff Theodore Johnson Scofield and William Sparks all uf Michigan U. SA Fred William Billig
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 Withington Co
Original Assignee
Sparks Withington Co
Filing date
Publication date
Application filed by Sparks Withington Co filed Critical Sparks Withington Co
Publication of AU1930229A publication Critical patent/AU1930229A/en
Expired legal-status Critical Current

Links

AU19302/29A 1929-04-06 Improvements in or relating to signaling devices Expired AU1930229A (en)

Publications (1)

Publication Number Publication Date
AU1930229A true AU1930229A (en) 1930-04-29

Family

ID=

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