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US Patent: RE12,021
Gas and Steam Convertable Engine
Patentees: Gustave Dahlberg (exact or similar names) - McDonald, Washington County, PA Jacob Clicquennoi (exact or similar names) - Taylorstown, Washington County, PA Ernest Uhlin (exact or similar names) - McDonald, Washington County, PA USPTO Classifications: 123/74AA, 60/712 Tool Categories: propulsion and energy : steam engines propulsion and energy : internal combustion engines : gas and gasoline engines Assignees: D. C. & U. Gas Engine Co. - Washington County, PA Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Aug. 07, 1901 Granted: Aug. 19, 1902 Reissue Information: Reissue of 633,338 (Sep. 19, 1899) Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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