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US Patent: 303,986
Injector
Patentee: Henry F. Colvin (exact or similar names) - Philadelphia, PA USPTO Classifications: 417/175 Tool Categories: propulsion and energy : steam apparatus : water injectors propulsion and energy : steam apparatus : stationary boilers : feedwater apparatus Assignees: Rue Mfg. Co. - Philadelphia, PA Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Mar. 10, 1884 Granted: Aug. 26, 1884 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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