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US Patent: 141,401
Improvement in Machines for Forming Auger-Bits
Patentee:
James Swan (exact or similar names) - Seymour, CT

USPTO Classifications:
76/2

Tool Categories:
tool making : making drills and augers
woodworking tools : hand drills : drill bits : auger bits

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
G. W. Divine
Fred. Rugg

Patent Dates:
Applied: Apr. 10, 1873
Granted: Jul. 29, 1873

Patent Pictures: [ 1 | 2 ]
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