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US Patent: 596,420
Expansion Router-Bit
Patentee: Franklin W. Britton (exact or similar names) - Brainerd, MN USPTO Classifications: 408/190 Tool Categories: woodworking tools : hand drills : drill bits : adjustable drill bits Assignees: None Manufacturer: Not known to have been produced Witnesses: I. U. White S. J. Greer	Patent Dates: Applied: Apr. 19, 1897 Granted: Dec. 28, 1897 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin (dm)

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