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US Patent: 333,418
Counterboring Attachment for Bits
Patentee: Edwin Francis Lindsey (exact or similar names) - Bristol, RI USPTO Classifications: 408/202 Tool Categories: woodworking tools : hand drills : drill bits : countersinks woodworking tools : hand drills : drill accessories Assignees: None Manufacturer: Not known to have been produced Witnesses: Leonard G. Simmons Charles F. Simmons	Patent Dates: Applied: May 11, 1885 Granted: Dec. 29, 1885 Patent Pictures: [ 1 | 2 ] USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin (dm)

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