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US Patent: 993,352
Electric drill
Patentee: William O. Duntley (exact or similar names) - Chicago, IL USPTO Classifications: 173/141, 173/170, 173/217, 310/112, 310/83 Tool Categories: handheld power tools : handheld power drills Assignees: Chicago Pneumatic Tool Co. - Chicago, IL Manufacturer: Chicago Pneumatic Tool Co. - Chicago, IL Witnesses: George A. Rees S. E. Hibben	Patent Dates: Applied: Jan. 20, 1905 Granted: May 30, 1911 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Chicago Pneumatic Tool Co.

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