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US Patent: RE4,754
Improvement in Countersinks
Patentee: Sewall L. Abbott (exact or similar names) - Deering, ME USPTO Classifications: 408/229 Tool Categories: woodworking tools : hand drills : drill bits : countersinks Assignees: None Manufacturer: Unknown Witnesses: William Henry Clifford D. W. Scribner	Patent Dates: Granted: Feb. 13, 1872 Reissue Information: Reissue of 117,237 (Jul. 25, 1871) Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin (dm)

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