Grating expansion joint for bridges
United States Patent 2118330

Inventors:
Tarof, Ernest L.
Publication Date:
05/24/1938
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Assignee:
KERLOW STEEL FLOORING CO
Primary Class:
14/73.100
Other Classes:
404/58, 52/396.040, 14/73
International Classes:
E01D19/06; E01D19/12; E01D19/00