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US Patent: 432,677
Steam Engine
Patentees: Nicholas Ratchford (exact or similar names) - Plain City, Madison County, OH Clark Harper (exact or similar names) - Plain City, Madison County, OH USPTO Classifications: 418/191 Tool Categories: propulsion and energy : steam apparatus : rotary steam engines Assignees: Nicholas Ratchford - Plain City, Madison County, OH Edward M. Fiebiger - Plain City, Madison County, OH Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Jan. 06, 1890 Granted: Jul. 22, 1890 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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