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US Patent: 441,865
Rotary Gas Engine
Patentee: George H. Chappell (exact or similar names) - New York, NY USPTO Classifications: 123/247, 418/232 Tool Categories: propulsion and energy : internal combustion engines : rotary engines Assignees: George H. Chappell - New York, NY Julius M. Heyman - New York, NY Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Aug. 18, 1890 Granted: Dec. 02, 1890 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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