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US Patent: 408,483
Method of Operating Gas Engines
Patentee: Henry Hoelljes (exact or similar names) - New York, NY USPTO Classifications: 123/1R, 123/61V, 123/65VD, 123/69V, 60/39.6, 60/772 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: Mar. 06, 1889 Granted: Aug. 06, 1889 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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