Title:
Folding display
Document Type and Number:
United States Patent 2147132
Inventors:
Henry, Ziemmerman
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Publication Date:
02/14/1939
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Referenced by:
Export Citation:
Assignee:
CHICAGO CARDBOARD COMPANY
Primary Class:
Other Classes:
40/124.090, 211/73
International Classes:
G09F1/06; G09F1/00