Building construction
United States Patent 2249106

Inventors:
Leroy, Baumgartl
Publication Date:
07/15/1941
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Assignee:
Leroy, Baumgartl
Primary Class:
52/417
Other Classes:
52/460, 52/461, 52/506.060, 52/550, 52/549
International Classes:
E04B5/14