Building construction
United States Patent 2241830

Inventors:
Tourtellotte, Della W.
Publication Date:
05/13/1941
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Assignee:
Della, Tourtellotte W.
Primary Class:
52/169.400
Other Classes:
52/236.400, 52/185, D25/4, D25/5
International Classes:
E04H1/04