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US Patent: 112,176
Improvement in countersinks
Patentee: Frank H. Palmer (exact or similar names) - Foxcroft, ME USPTO Classifications: 408/191 Tool Categories: woodworking tools : hand drills : drill bits : countersinks Assignees: None Manufacturer: Not known to have been produced Witnesses: Augustus G. Lebroke Horace F. Grant	Patent Dates: Granted: Feb. 28, 1871 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin

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