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US Patent: 22,122
Screw-Wrench
Patentee:
Joseph Hyde (exact or similar names) - Troy, NY

USPTO Classifications:
188/151R, 303/49, 81/170, 81/177.85

Tool Categories:
wrenches : nut wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Lewis Corning
Marcus P. Norton

Patent Dates:
Granted: Nov. 23, 1858

Patent Pictures:
Joseph Hyde Pat. Nov. 23, 1858
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Description:
The patent describes a wrench assembled from a number of malleabe iron parts. The adjustable jaw slides on parallel rods. The adjusting screw is placed in the center of the jaw and handle.

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