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US Patent: 1,531,250
Road Engine
Patentee: Frank A. Browne (exact or similar names) - Wayne, Delaware County, PA USPTO Classifications: 180/36 Tool Categories: propulsion and energy : steam apparatus : steam road engines propulsion and energy : steam apparatus : steam rollers Assignees: Barber Asphalt Co. - Philadelphia, PA Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Aug. 10, 1921 Granted: Mar. 24, 1925 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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