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US Patent: 433,810
Gas or Oil Motor Engine
Patentee: Nicolaus August Otto (exact or similar names) - Cologne, German Empire USPTO Classifications: 123/123/90.32, 123/123/90.61 Tool Categories: propulsion and energy : internal combustion engines : oil engines Assignees: None Manufacturer: Gas-Motoren-Fabrik-Deutz - Köln-Deutz, Germany Witnesses: Unknown	Patent Dates: Applied: Apr. 21, 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
Description: Patented in Belgium, 05 Apr 1890, #90,095 and in Italy, 29 Apr 1890, #LIII, 332.

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