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US Patent: 486,239
Machine for Shaping Auger-Heads
Patentee:
Albert U. Smith - Seymour, CT

USPTO Classifications:
76/3

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:
Alfred S. Houghton
S. Hart Culver

Patent Dates:
Applied: Mar. 22, 1892
Granted: Nov. 15, 1892

Patent Pictures: [ 1 | 2 ]
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