Title:
Sign holders
United States Patent 3143817
Inventors:
Paulson, Paul G.
Publication Date:
08/11/1964
Export Citation:
Assignee:
Paulson, Paul G.
Primary Class:
Other Classes:
29/275, 40/606.13, 52/40, 173/29, 173/90, 173/126, 248/156
International Classes:
E01F9/011; E01F9/011
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