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US Patent: 538,680
Gas Engine
Patentee: Lawrence M. Johnston (exact or similar names) - Dayton, Montgomery County, OH USPTO Classifications: 123/348, 123/82 Tool Categories: propulsion and energy : internal combustion engines Assignees: None Manufacturer: New Era Iron Works - Dayton, Montgomery County, OH Witnesses: Unknown	Patent Dates: Applied: Apr. 04, 1894 Granted: May 07, 1895 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for New Era Gas Engine Co.

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