Floor slab
United States Patent 1929478

Inventors:
Bunker, Herbert H.
Publication Date:
10/10/1933
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Assignee:
Bunker, Herbert H.
Primary Class:
Other Classes:
52/474, 52/189, 52/483.100, 52/335, 404/70, 14/73, 52/174
International Classes:
E04C2/42; E04C2/30