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US Patent: 800,988
Wrench
Patentee:
Aquila B. Cook (exact or similar names) - Windber, PA

USPTO Classifications:
4/437, 411/417, 411/437, 81/126, 81/161

Tool Categories:
wrenches : wrench adjustment types : screw adjust wrenches
wrenches : wrench adjustment types : self-adjust wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
J. E. McMullen
L. D. Reed
K. H. Butler
C. Klostermann

Patent Dates:
Applied: Apr. 17, 1905
Granted: Oct. 03, 1905

Patent Pictures:
Aquila B. Cook Pat. Oct. 3, 1905
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Description:
The pivots between the handle and the main shank with the fixed jaw, and the threaded shaft and adjusting screw, allow extra gripping force to be applied after the movable jaw's position has been set by the adjusting screw.

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