Title:
Traffic control device
United States Patent 1888590


Inventors:
Greenlee, Eli M.
Application Number:
US57586631A
Publication Date:
11/22/1932
Filing Date:
11/18/1931
Assignee:
Orville, House W.
Harry, Cohen H.
Harry, Martin H.
Primary Class:
International Classes:
E01F9/04
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