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US Patent: 432,945
Monkey Wrench Attachment
Patentee:
Leander D. Junkins - Somerville, MA

USPTO Classifications:
81/437

Tool Categories:
wrenches : wrench components
screwdrivers

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Frank G. Parker
Matthew M. Blunt

Patent Dates:
Applied: May 26, 1890
Granted: Jul. 22, 1890

Patent Pictures:
Leander D. Junkins patent July 22, 1890
USPTO pdf tiff
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Description:
This screwdriver attachment is shown in the drawings in two variations. It would clamp between the jaws to be used in line with the handle or perpendicular to the handle, and could be reversed for storage.

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