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US Patent: 423,979
Burr Remover
Patentees: Carl Gustaf Anderson (exact or similar names) - Lynn, Essex County, MA John Tregoning (exact or similar names) - Lynn, Essex County, MA USPTO Classifications: 409/300 Tool Categories: metalworking machines Assignees: Thomson Electric Welding Co. - Lynn, Essex County, MA Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Nov. 11, 1889 Granted: Mar. 25, 1890 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens Thomson Electric Welding Co.

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