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US Patent: 274,113
Wrench
Patentee:
John A. Dodge - Somerville, MA

USPTO Classifications:
81/127, 81/173

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

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
H. A. Clifford
Wm. S. Bellows
Edwin A. Brown

Patent Dates:
Applied: Jul. 21, 1882
Granted: Mar. 20, 1883

Patent Pictures:
John A. Dodge patent March 20, 1883
USPTO pdf tiff
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Description:
The wrench combines screw-adjustment with lever action to hold a tight grip.

The comparable Canadian patent is no. CA-18,816 issued March 8, 1884.

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