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Patent number:
Patent Date:
US Patent: 451,896
Twist Drill
Patentee:
Joseph E. Merritt (
exact
or
similar
names) - Bangor, Penobscot County, ME
USPTO Classifications:
408/230
Tool Categories:
metalworking machines
:
drilling and boring
:
drill bits
:
metalworking twist drills
Assignees:
Joseph E. Merritt
- Bangor, Penobscot County, ME
Albert H. Parker
- Bangor, Van Buren County, ME
Manufacturer:
Not known to have been produced
Witnesses:
Unknown
Patent Dates:
Applied:
Sep. 05, 1890
Granted:
May 05, 1891
Patent Pictures:
USPTO
(New site tip)
Google Patents
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