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US Patent: 389,146
Valve-gear for steam-engines
Patentee: Noble T. Greene (exact or similar names) - Providence, RI USPTO Classifications: 91/260, 91/272 Tool Categories: propulsion and energy : steam engines : steam engine valve gear Assignees: None Manufacturer: Providence Steam Engine Co. - Providence, RI Witnesses: W. H. Thurston S. J. Murphy	Patent Dates: Applied: Mar. 17, 1888 Granted: Sep. 04, 1888 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Providence Steam Engine Co.

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