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US Patent: 2,572,652
Multiple Expansion Steam Engine
Patentee: Herman G. Mueller (exact or similar names) - Erie, Erie County, PA USPTO Classifications: 91/157, 91/271, 91/331, 92/144 Tool Categories: propulsion and energy : steam engines Assignees: Skinner Engine Co. - Erie, Erie County, PA Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Feb. 21, 1947 Granted: Oct. 23, 1951 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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