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US Patent: 341,084
Manufacture of Twist-Drills
Patentee:
Frank E. Whitney - Melrose, MA

USPTO Classifications:
72/365.2, 72/371, 76/108.6

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

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
J. M. Dolan
Fred. B. Dolan

Patent Dates:
Applied: Jan. 29, 1885
Granted: May 04, 1886

Patent Pictures:
USPTO pdf tiff
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