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US Patent: 433,807
Motor Engine Worked by Oil Vapor
Patentee:
Nicolaus August Otto - Cologne, German Empire

USPTO Classifications:
123/298, 123/82, 261/18.3, 261/44.5, 261/50.2

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: Mar. 01, 1890
Granted: Aug. 05, 1890

Patent Pictures:
USPTO pdf tiff
Google Patents
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"Vintage Machinery" entry for Otto Gas Engine Works

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