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Patent number:
Patent Date:
US Patent: 1,503,206
Combination valve grinder and drill
Patentee:
Arthur W. Ojerholm (
exact
or
similar
names) - Worcester, MA
USPTO Classifications:
29/26B
,
408/124
,
408/20
,
408/27
,
451/117
,
74/318
,
74/81
Tool Categories:
trade specific
:
vehicle repairer
:
vehicle mechanic
:
valve and seat maintenance
handheld power tools
:
handheld power drills
Assignees:
Worcester Electric Tool Co.
- Worcester, MA
Manufacturer:
Worcester Electric Tool Co.
- Worcester, MA
Witnesses:
Unknown
Patent Dates:
Applied:
Nov. 29, 1920
Granted:
Jul. 29, 1924
Patent Pictures:
USPTO
(New site tip)
Google Patents
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