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US Patent: 474,987
Wrench
Patentee:
William Church (exact or similar names) - St. Paul, MN

USPTO Classifications:
81/134, 81/184, 81/356, 81/361, 81/413

Tool Categories:
wrenches : wrench adjustment types : quick adjust wrenches
wrenches : pipe and nut combination wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
C. L. Caldwell
A. Mae Welch
T. D. Merwin

Patent Dates:
Applied: Aug. 04, 1891
Granted: May 17, 1892

Patent Pictures:
William Church patent May 17, 1892
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Description:
Combination pipe and nut wrench includes an intermediate jaw piece with pipe grip on one side and flat on the other. The adjustment of the movable is held by a secondary lever handle with teeth that engage a rack on the main shank. The lever also provides extra clamping motion for the movable jaw.

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