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US Patent: 1,123,423
Wrench
Patentee:
William S. Thomson - Plantsville, CT

USPTO Classifications:
81/165

Tool Categories:
wrenches : wrench adjustment types : screw adjust wrenches
wrenches : wrench components : wrench jaw components

Assignees:
H. D. Smith and Company - Plantsville, CT

Manufacturer:
H. D. Smith and Company - Plantsville, CT

Witnesses:
S. H. Clarke
Roger W. Edwards
George R. Bond
E. H. Galpin

Patent Dates:
Applied: Nov. 17, 1911
Granted: Jan. 05, 1915

Patent Pictures:
William S. Thomson patent January 5, 1915
USPTO pdf tiff
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Description:
The patent is an improvement in components of the wrench shank, head and adjustable jaw. Through pins connect the head and movable jaw. This patent and Thomson's earlier patent (no. 1,061,339, granted May 13, 1913, are the basis for the Perfect Handle adjustable open end wrenches, although most extant examples do not have the through pins and slots from this patent.

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