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US Patent: 570,649
Gas Engine
Patentee: Rolf J. Rolfson (exact or similar names) - San Francisco, CA USPTO Classifications: 123/151, 123/179.19, 123/195R, 123/294, 123/41.44, 123/41.82R, 123/41R, 123/68, 123/74B, 290/36R Tool Categories: propulsion and energy : internal combustion engines : gas and gasoline engines Assignees: Rolf J. Rolfson - San Francisco, CA Samuel S. Simrak - San Francisco, CA Albert R. Herman - San Francisco, CA Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: May 16, 1895 Granted: Nov. 03, 1896 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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