Title:
Increment assembly sheet sign
United States Patent 2942366
US Patent References:
/1238976.html
- - 1238976

Billboard
- - 1562140

Sign structure
- - 1860919

Multiple panel display board
- - 2526603

Road display device
- - 2806308


Inventors:
Pfaff Jr., Henry C.
Siver, Richard W.
Publication Date:
06/28/1960
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Assignee:
Traffic, And Street Sign Compan
Primary Class:
40/624
Other Classes:
248/230.100, D20/41
International Classes:
G09F15/00
Foreign References:
GB339810A
GB565715A