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US Patent: 231,557
Monkey Wrench
Patentee:
William H. Glover (exact or similar names) - St. Louis, MO

USPTO Classifications:
81/159

Tool Categories:
wrenches : wrench adjustment types : quick adjust wrenches

Assignees:
William H. Glover - St. Louis, MO
H. Maximilian Starkloff - St. Louis, MO
Joseph De L. Galvin - St. Louis, MO

Manufacturer:
Not known to have been produced

Witnesses:
Geo. H. Knight
Walter Allen
H. M. Starkloff

Patent Dates:
Applied: Jun. 21, 1880
Granted: Aug. 24, 1880

Patent Pictures:
William H. Glover patent August 24, 1880
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Description:
This is an improvement on Glover's Dec. 18, 1877 patent (no. 198,196). The improvement is to add a limited screw adjust collar at the end of the handle. The basic adjustment means is an interrupted screw that is free to slide in and out, but catches to hold adjustment when turned one quarter turn.

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