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US Patent: 200,348
Wrench
Patentee:
Solomon Schwerdt - Roseville, IL

USPTO Classifications:
81/145

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

Assignees:
Solomon Schwerdt - Roseville, IL
J. W. Peck - Roseville, IL

Manufacturer:
Not known to have been produced

Witnesses:
J. W. Peck
F. W. Harrod
Jas. J. Sheehy
Robert Everett

Patent Dates:
Applied: Dec. 29, 1877
Granted: Feb. 12, 1878

Patent Pictures:
Solomon Schwerdt patent February 12, 1878
USPTO pdf tiff
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Description:
The patent is for the spring-loaded "stirrup" in the movable jaw and the corresponding grooves in the movable jaw and notches in the main shank.

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