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US Patent: 521,443
Gas Engine
Patentee: Sylvanus D. Shepperd (exact or similar names) - Newark, Essex County, NJ USPTO Classifications: 123/145R, 123/182.1, 123/188.2, 123/196R, 123/324, 123/78F, 123/87, 123/90.33 Tool Categories: propulsion and energy : internal combustion engines Assignees: Backus Water Motor Co. - Newark, Essex County, NJ Manufacturer: Backus Water Motor Co. - Newark, Essex County, NJ Witnesses: Robert B. Cissel Frederick C. Fraentzel Frank S. Ober Alfred W. Van Zee	Patent Dates: Applied: Oct. 26, 1893 Granted: Jun. 12, 1894 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Backus Water Motor Co.

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