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US Patent: 433,806
Motor Engine Worked by Oil Vapor
Patentee: Nicolaus August Otto (exact or similar names) - Cologne, North Rhine-Westphalia, German Empire USPTO Classifications: 123/41.02, 123/41.44, 123/545, 123/585 Tool Categories: propulsion and energy : internal combustion engines : oil engines Assignees: Gas-Motoren-Fabrik-Deutz - Köln-Deutz, North Rhine-Westphalia, Germany Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Mar. 01, 1890 Granted: Aug. 05, 1890 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Otto Gas Engine Works

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