Title:
Grating
United States Patent 2960918
Inventors:
Harold, Nagin
Publication Date:
11/22/1960
Export Citation:
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Assignee:
Reliance, Steel Products Compan
Primary Class:
52/181
Other Classes:
52/309.14, 52/669, 404/19, D05/1, D25/154
International Classes:
E01D19/12; E01D19/12
View Patent Images:
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US Patent References:
2246898Nonslip wear-resistant tread
1784895Construction of roads and the like
1665846Grating
1603678Grating
0865180N/A
Foreign References:
FR519055A
FR851219A
DE811033C