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Patent number:
Patent Date:
US Patent: 146,212
Improvement in Dies for Forming Auger-Bits
Patentee:
James Swan (
exact
or
similar
names) - Seymour, CT
USPTO Classifications:
72/467
,
72/64
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
A. J. Tibbits
Patent Dates:
Applied:
Dec. 10, 1873
Granted:
Jan. 06, 1874
Patent Pictures:
USPTO
(New site tip)
Google Patents
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