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United States Patent 2865140

Inventors:
Conrad, Shumway
Publication Date:
12/23/1958
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Assignee:
Conrad, Shumway
Primary Class:
451/45
Other Classes:
451/124, 451/367, 451/340, 409/196
International Classes:
B24B3/38; B24B3/00
US Patent References:
2291255Chuck
2518018Pipe wrench tooth sharpener and cutting tool
2705391Tool sharpening device
Foreign References:
GB189825666A
GB115059A