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US Patent: 64,423
Improvement in Hollow Augers
Patentee:
Morris Isbell (exact or similar names) - New Haven, CT

USPTO Classifications:
30/495

Tool Categories:
woodworking tools : hand drills : drill bits : hollow bits

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
John E. Earle
A. J. Tibbits
Patent Dates:
Granted: May 07, 1867

Patent Pictures:
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