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US Patent: 284,556
Gas Engine
Patentee: George M. Hopkins (exact or similar names) - Brooklyn, NY USPTO Classifications: 123/188.2, 137/520, 137/606 Tool Categories: propulsion and energy : internal combustion engines : gas and gasoline engines Assignees: Economic Motor Co. - New York, NY Manufacturer: Not known to have been produced Witnesses: B. G. Underwood C. Sedgwick C. Neveux	Patent Dates: Applied: Mar. 31, 1883 Granted: Sep. 04, 1883 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Economic Motor Co.

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