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US Patent: 48,548
Improved Expanding Drill
Patentee: Franklin Gleason (exact or similar names) - Philadelphia, PA USPTO Classifications: 408/169 Tool Categories: woodworking tools : hand drills : drill bits : adjustable drill bits Assignees: None Manufacturer: Not known to have been produced Witnesses: John H. Tibben George R. Kirk	Patent Dates: Granted: Jul. 04, 1865 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin (dm)

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