Title:
Trussless roof
Document Type and Number:
United States Patent 2257153
Inventors:
Blaski, John F.
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Publication Date:
09/30/1941
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Referenced by:
Export Citation:
Assignee:
Blaski, John F.
Primary Class:
Other Classes:
D25/18, D25/56, 52/79.700
International Classes:
E04B7/10