Title:
Grating
United States Patent 2834267
US Patent References:
Grating
- - 2084118

Grating structure
- - 2275104


Inventors:
Beebe, Gerald T.
Publication Date:
05/13/1958
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Assignee:
UNITED STATES STEEL CORP
Primary Class:
52/667
Other Classes:
52/668
International Classes:
E04C2/42; E04C2/30
Foreign References:
GB321706A