Title:
Black-out screening
Document Type and Number:
United States Patent 2323239
Inventors:
Renton, Henry N.
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Publication Date:
06/29/1943
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Referenced by:
Export Citation:
Assignee:
AMERICAN PULLEY COMPANY
Primary Class:
Other Classes:
160/238, 206/326, 160/377, 49/67
International Classes:
E06B7/082; E06B7/02