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Patent number:
Patent Date:
US Patent: 167,884
Improvement in Countersinks
Patentee:
Theodore P. Farmer (
exact
or
similar
names) - Boston, MA
USPTO Classifications:
408/191
Tool Categories:
woodworking tools
:
hand drills
:
drill bits
:
countersinks
Assignees:
Edward M. Farnsworth
- Revere, MA
Theodore P. Farmer
- Boston, MA
Manufacturer:
Not known to have been produced
Witnesses:
W. J. Cambridge
N. W. Stearns
Patent Dates:
Applied:
May 06, 1875
Granted:
Sep. 21, 1875
Patent Pictures:
USPTO
(New site tip)
Google Patents
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