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US Patent: 1,701,673
Attachment for portable drills
Patentee:
Frank B. Hewel (exact or similar names) - Pittsburgh, PA

USPTO Classifications:
408/712, 408/99

Tool Categories:
handheld power tools : handheld power tool accessories

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Apr. 07, 1924
Granted: Feb. 12, 1929

Patent Pictures:
USPTO (New site tip)
Google Patents
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Description:
Conversion Tool

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