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US Patent: 728,707
Engine Governor
Patentee: Joseph Hardill (exact or similar names) - Mitchell, Perth County, ON, Canada USPTO Classifications: 73/540 Tool Categories: propulsion and energy : steam engines : steam engine governors Assignees: Joseph Hardill - Perth County, ON Canada Robert Benson - Buffalo, Erie County, NY Manufacturer: Hardill Compound Engine Co. - Mitchell, Perth County, ON Canada Witnesses: Frank A. Shoemaker Robert Benson C. S. Hunt J. Willson	Patent Dates: Applied: Jul. 14, 1902 Granted: May 19, 1903 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens VintageMachinery.org entry for Hardill Compound Engine Co.

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