Title:
Road marker
Document Type and Number:
United States Patent 2268537
Inventors:
Leroy, Shuger
Plaque It!
Sponsored by: Flash of Genius |
Publication Date:
12/30/1941
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Referenced by:
Export Citation:
Assignee:
Leroy, Shuger
Primary Class:
Other Classes:
427/137, 404/14
International Classes:
E01F9/04; G02B5/128; G02B5/12