Title:
Strip shingle
United States Patent 2173774
Inventors:
Birch, Neil L.
Childers, Robert A.
Publication Date:
09/19/1939
Export Citation:
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Assignee:
Birch, Neil L.
Childers, Robert A.
Primary Class:
52/522
Other Classes:
52/531
International Classes:
E04D3/363; E04D3/36
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