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US Patent: 434,131
Traction Engine
Patentee: Jerome B. Harris (exact or similar names) - Stockton, San Joaquin County, CA USPTO Classifications: 180/10, 180/371 Tool Categories: propulsion and energy : steam apparatus : steam traction engines : traction engine propulsion components Assignees: Jerome B. Harris - Stockton, San Joaquin County, CA John Gambetti - Stockton, San Joaquin County, CA Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: May 19, 1890 Granted: Aug. 12, 1890 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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