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US Patent: 6,589
Arrangement and method of working the valves of auxiliary engines for feeding boilers
Patentee: Rufus Porter (exact or similar names) - New York, NY USPTO Classifications: 59/31, 91/342, 92/130B, 92/130R Tool Categories: propulsion and energy : steam apparatus : stationary boilers : solid fuel stokers Assignees: Richard Van Dyke, Jr. - New York, NY Manufacturer: Not known to have been produced Witnesses: James Donahoe I. A. Sutton	Patent Dates: Granted: Jul. 10, 1849 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin

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