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US Patent: 343,969
Traction Engine
Patentee: Otho Stevens (exact or similar names) - Spring Valley, Fillmore County, MN USPTO Classifications: 180/37, 464/123, 475/248 Tool Categories: propulsion and energy : steam apparatus : steam traction engines : traction engine propulsion components Assignees: Otho Stevens - Spring Valley, Fillmore County, MN Jerome A. Stevens - Spring Valley, Fillmore County, MN Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Jul. 24, 1884 Granted: Jun. 15, 1886 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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