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US Patent: 1,253,291
Drill Sharpener
Patentee: William A. Smith (exact or similar names) - Denver, CO USPTO Classifications: 76/5.4 Tool Categories: metalworking machines : grinders : drill grinders Assignees: Denver Rock Drill Mfg. Co. - Denver, CO Manufacturer: Not known to have been produced Witnesses: D. E. Strout L. N. Rodolf	Patent Dates: Applied: Feb. 27, 1917 Granted: Jan. 15, 1918 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens
Description: B. Gater - patent attorney

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