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US Patent: 418,821
Gas Engine
Patentee: James Downer Smith (exact or similar names) - Philadelphia, PA USPTO Classifications: 123/143R, 123/146, 123/274, 123/292, 123/65VD, 123/70V, 123/90.28 Tool Categories: propulsion and energy : internal combustion engines : gas and gasoline engines Assignees: James Downer Smith - Philadelphia, PA Joseph L. Ferrell - Philadelphia, PA Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Apr. 18, 1885 Granted: Jan. 07, 1890 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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