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US Patent: 267,590
Bit and countersink
Patentee: Aurelius O. Revenaugh (exact or similar names) - Jackson, MI USPTO Classifications: 408/193 Tool Categories: woodworking tools : hand drills : drill bits : countersinks Assignees: None Manufacturer: Not known to have been produced Witnesses: J. M. Lewis William H. Comstock	Patent Dates: Applied: Jul. 12, 1882 Granted: Nov. 14, 1882 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin

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