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US Patent: 578,209
Hollow auger
Patentee: Hanning A. Carlson (exact or similar names) - St. Louis, MO USPTO Classifications: 144/104, 408/124, 408/203.5, 408/85 Tool Categories: woodworking tools : hand drills : drill bits : hollow bits woodworking tools : hand drills : eggbeater drills Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Granted: Mar. 02, 1897 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin

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