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US Patent: 428,837
Boiler Leveler
Patentees: William H. Freeman (exact or similar names) - Shell, Adams County, OH Joseph L. Freeman (exact or similar names) - Shell, Adams County, OH USPTO Classifications: 114/191, 180/39, 280/7 Tool Categories: propulsion and energy : steam apparatus : steam traction engines : traction engine suspensions Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Nov. 27, 1889 Granted: May 27, 1890 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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