Title:
Folding postcard or window display
United States Patent 2148279

Inventors:
Valentine, Sandberg
Publication Date:
02/21/1939
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Assignee:
Valentine, Sandberg
Primary Class:
40/124.080
Other Classes:
446/147, 40/539, 229/92.800
International Classes:
G09F1/04; G09F1/00