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US Patent: 456,284
Gas Engine
Patentees: Peter T. Coffield (exact or similar names) - Springfield, Clark County, OH Charles H. Paxson (exact or similar names) - Springfield, Clark County, OH USPTO Classifications: 123/146, 123/348, 123/41.09, 123/86, 261/96 Tool Categories: propulsion and energy : internal combustion engines : gas and gasoline engines Assignees: Springfield Gas Engine Co. - Springfield, Clark County, OH Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Dec. 16, 1890 Granted: Jul. 21, 1891 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Springfield Gas Engine Co.

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