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US Patent: 641,103
Compound steam-engine
Patentee: Joseph Hardill (exact or similar names) - Stratford, ON Canada USPTO Classifications: 91/164 Tool Categories: propulsion and energy : steam engines Assignees: None Manufacturer: Hardill Compound Engine Co. - Mitchell, ON Canada Witnesses: Samuel B. Gray R. J. Harding	Patent Dates: Applied: Jun. 04, 1898 Granted: Jan. 09, 1900 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Hardill Compound Engine Co.

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