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US Patent: 42,639
Hollow Auger
Patentee:
Cornelius L. Campbell (exact or similar names) - Binghamton, NY

USPTO Classifications:
30/495

Tool Categories:
trade specific : wheelwright
woodworking tools : hand drills : drill bits : auger bits

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Theodore Franks
George W. Smith

Patent Dates:
Granted: May 10, 1864

Patent Pictures:
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