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US Patent: 433,813
Gas or Oil Motor Engine
Patentee: Nicolaus August Otto (exact or similar names) - Cologne, German Empire USPTO Classifications: 123/123/334, 123/123/363, 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: May 22, 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, 02 May 1890, #90,400 and in Italy, 28 May 1890, #LII, 490.

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