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US Patent: 433,810
Gas or Oil Motor Engine
Patentee:
Nicolaus August Otto - 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:
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"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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