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US Patent: 632,610
Wrench
Patentees:
David K. Wilhelm (exact or similar names) - Cresson, PA
Samuel A. Louder (exact or similar names) - Cresson, PA

USPTO Classifications:
81/151

Tool Categories:
wrenches : pipe and nut combination wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
L. C. Hills
A. L. Hough
Jas. A. Lynch
J. F. Lynch

Patent Dates:
Applied: Mar. 28, 1899
Granted: Sep. 05, 1899

Patent Pictures:
D. K. Wilhelm and S. A. Louder patent Sept. 5, 1899
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Description:
"S" wrench jaws sliding in dovetail notches; each jaw's adjustment is held by a small set screw with a thumb lever. One end's jaws are flat for nuts, the other end's jaws are cut to grip pipe.

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