Building construction
United States Patent 2278956

Inventors:
Martin, Wagner
Publication Date:
04/07/1942
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Assignee:
Martin, Wagner
Primary Class:
52/81.400
Other Classes:
52/285.200, 52/236.100, 52/206, D25/18, D25/32, 52/274, 52/79.400, D25/19, 52/404.100, 52/463
International Classes:
E04B1/32