Title:
Shingle
Document Type and Number:
United States Patent 1812223
Inventors:
Tatlow, John V.
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Publication Date:
06/30/1931
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Referenced by:
Export Citation:
Assignee:
Tatlow, John V.
Primary Class:
Other Classes:
52/11, 144/13
International Classes:
E04D1/08; E04D1/02