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US Patent: 2,414,751
Valve
Patentee: Oscar H. Ludeman (exact or similar names) - New York, NY USPTO Classifications: 251/124, 251/228, 251/328, 251/360 Tool Categories: propulsion and energy : steam engines : steam engine valves Assignees: Skinner Engine Co. - Erie, Erie County, PA Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: May 13, 1944 Granted: Jan. 21, 1947 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Skinner Engine Co.

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