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US Patent: 279,360
Combined Drill or Reamer, Tap and Socket
Patentee: Joseph W. Douglas (exact or similar names) - Middletown, Middlesex County, CT USPTO Classifications: 408/218, 408/223 Tool Categories: industrial tools : taps and dies Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Dec. 04, 1882 Granted: Jun. 12, 1883 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for W. & B. Douglas Mfg. Co.

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