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US Patent: 41,894
Improvement in Countersinks
Patentee: H. S. Shepardson (exact or similar names) - Shelburne Falls, MA USPTO Classifications: 408/191 Tool Categories: woodworking tools : hand drills : drill bits : countersinks Assignees: H. S. Shepardson - Shelburne Falls, MA F. R. Pratt - Shelburne Falls, MA W. H. Maynard - Shelburne Falls, MA Manufacturer: Not known to have been produced Witnesses: H. A. Merritt John V. Griebel	Patent Dates: Granted: Mar. 08, 1864 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin (dm)

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