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Patent number:
Patent Date:
US Patent: 1,434,202
Electric drill
Patentee:
William B. Engelhardt (
exact
or
similar
names) - Chicago, IL
USPTO Classifications:
74/348
Tool Categories:
handheld power tools
:
handheld power drills
Assignees:
None
Manufacturer:
Not known to have been produced
Witnesses:
Unknown
Patent Dates:
Applied:
Sep. 09, 1920
Granted:
Oct. 31, 1922
Patent Pictures:
USPTO
(New site tip)
Google Patents
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