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US Patent: 517,023
Metal Tapping or Drilling Machine
Patentee: Thomas I. Brown (exact or similar names) - St. Johnsbury, Caledonia County, VT USPTO Classifications: 408/96, 408/97, 470/96 Tool Categories: metalworking machines : drilling and boring : drill presses metalworking machines : drilling and boring : tapping machines Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: May 08, 1893 Granted: Mar. 27, 1894 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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