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US Patent: 597,771
Gas Engine
Patentee: Herbert H. Hennegin (exact or similar names) - St. Louis, MO USPTO Classifications: 123/162, 123/188.2, 123/55.7, 123/68 Tool Categories: propulsion and energy : internal combustion engines : gas and gasoline engines Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Jun. 16, 1896 Granted: Jan. 25, 1898 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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