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US Patent: 871,086
Engine
Patentees:
George H. Hayes (exact or similar names) - Philadelphia, PA
William O. Duntley (exact or similar names) - Chicago, IL

USPTO Classifications:
91/12, 91/174, 91/184

Tool Categories:
industrial tools : pneumatic tools
handheld power tools : handheld power drills

Assignees:
Chicago Pneumatic Tool Co. - Chicago, IL

Manufacturer:
Chicago Pneumatic Tool Co. - Chicago, IL

Witnesses:
Edwin Stearne
Gertrude Crap
Henry R. Kent
Samuel E. Hibben

Patent Dates:
Applied: Jun. 19, 1901
Granted: Nov. 12, 1907

Patent Pictures:
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Google Patents
Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for Chicago Pneumatic Tool Co.

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