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US Patent: 22,394
Method of attaching cutting-tips to auger-shanks
Patentees:
Aaron Denio (exact or similar names) - Shaftsbury, VT
Norman S. White (exact or similar names) - Shaftsbury, VT

USPTO Classifications:
408/222, 408/226, 408/713

Tool Categories:
woodworking machines : specialty woodworking machines : tool making machines
woodworking tools : hand drills : drill bits
metalworking machines : drilling and boring : drill bits

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
William W. Mattison
John Hastings

Patent Dates:
Granted: Dec. 21, 1858

Patent Pictures:
USPTO (New site tip)
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