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US Patent: 167,884
Improvement in Countersinks
Patentee: Theodore P. Farmer (exact or similar names) - Boston, MA USPTO Classifications: 408/191 Tool Categories: woodworking tools : hand drills : drill bits : countersinks Assignees: Edward M. Farnsworth - Revere, MA Theodore P. Farmer - Boston, MA Manufacturer: Not known to have been produced Witnesses: W. J. Cambridge N. W. Stearns	Patent Dates: Applied: May 06, 1875 Granted: Sep. 21, 1875 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin (dm)

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