Structural element
United States Patent 2029645

Inventors:
Waugh, Hugh L.
Publication Date:
02/04/1936
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Assignee:
STRAN STEEL CORP
Primary Class:
52/377
Other Classes:
52/696, 52/694, 52/692
International Classes:
E04C3/07; E04C3/09; E04C3/04