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US Patent: 225,827
Gearing for Traction Engines
Patentee: William Heilman (exact or similar names) - Evansville, Vanderburg County, IN USPTO Classifications: 475/248 Tool Categories: propulsion and energy : steam apparatus : steam traction engines : traction engine propulsion components Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Feb. 19, 1880 Granted: Mar. 23, 1880 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Heilman Machine Works

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