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US Patent: 6,146
Piston Packing Metallic Packing for Pistons
Patentee: William Wright (exact or similar names) - Providence, RI USPTO Classifications: 277/446, 277/490 Tool Categories: Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Granted: Feb. 27, 1849 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Wright Steam Engine Works "Vintage Machinery" entry for Corliss Steam Engine Works

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