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US Patent: 86,674
Improvement in Countersink
Patentee: Louis H. Hunt (exact or similar names) - Rockingham, VT USPTO Classifications: 408/209 Tool Categories: woodworking tools : hand drills : drill bits : countersinks Assignees: Nathaniel G. Manson, Jr. - Cambridgeport, MA Louis H. Hunt - Rockingham, VT Manufacturer: Not known to have been produced Witnesses: S. F. Hubbard Charles L. Hubbard	Patent Dates: Granted: Feb. 09, 1869 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin (dm)
Description: Claim relates to solid struts, for strength, combined with formed sheet steel cutters to allow chip clearance.

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