Membrane unit building construction
United States Patent 1997605

Inventors:
Strom, Carl S.
Offutt, James S.
Publication Date:
04/16/1935
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Assignee:
UNITED STATES GYPSUM CO
Primary Class:
52/145
Other Classes:
52/508, 52/506.090, 52/407.300, 52/630
International Classes:
E04B9/26; E04B9/22