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US Patent: 100,816
Improved Machine for Bending the Lips of Auger-Bits
Machine for Upsetting Cook's 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:
B. W. Smith
J. H. Swain

Patent Dates:
Granted: Mar. 15, 1870

Reissue Information:
Reissued as RE4,517 (Aug. 15, 1871)

Patent Pictures: [ 1 | 2 | 3 | 4 ]
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