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US Patent: 222,051
Improvement in Hollow Augers
Patentee:
William A. Ives (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
Joseph C. Earle

Patent Dates:
Applied: Jan. 01, 1879
Granted: Nov. 25, 1879

Patent Pictures: [ 1 | 2 ]
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