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US Patent: 1,337,986
Pliers, Wrench and the Like
Patentee:
Allen C. Allan - Chicago, IL

USPTO Classifications:
81/407

Tool Categories:
wrenches : pliers type wrenches

Assignees:
None

Manufacturer:
Allan-Diffenbaugh Wrench & Tool Co. - Baraboo, WI

Witnesses:
Geo. G. Davison

Patent Dates:
Applied: May 19, 1919
Granted: Apr. 27, 1920

Patent Pictures:
Allen C. Allan Pat. April 27, 1920
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Description:
The shape of the opening in one handle and the corresponding curve in the shank of the other handle make these pliers self-adjusting for size, while the jaw faces remain parallel to each other. Used in conjunction with pat. nos. 1,386,149 and 1,490,902 for the KANT-SLIP plier-wrenches produced by the Allan-Diffenbaugh Wrench and Tool Co. of Baraboo, WI and the KANT SLIP P & T. Co. of Chicago, IL.

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