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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:
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