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US Patent: 663,148
Spark Arrester and Extinguisher
Patentee: George F. Conner (exact or similar names) - Port Huron, St. Clair County, MI USPTO Classifications: 55/335, 55/DIG.20 Tool Categories: propulsion and energy : steam apparatus : steam traction engines : traction engine spark arresters Assignees: None Manufacturer: Port Huron Engine & Thresher Co. - Port Huron, St. Clair County, MI Witnesses: Unknown	Patent Dates: Applied: Mar. 01, 1900 Granted: Dec. 04, 1900 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Port Huron Engine & Thresher Co.

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