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US Patent: 253,023
Traction Engine
Patentee: John H. Elward (exact or similar names) - Stillwater, Washington County, MN USPTO Classifications: 180/38 Tool Categories: propulsion and energy : steam apparatus : steam traction engines Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Sep. 19, 1881 Granted: Jan. 31, 1882 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Seymour Sabin & Co.

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