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| All Patents in class 81/375 | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 2,452,625 | Nov. 02, 1948 | H. Alpers | Screw and Toggle Adjusted Wrench and Clamp | |
 | 2,533,817 | Dec. 12, 1950 | A.A. Koskinen | Toggle Actuated, Slidable Jaw Wrench | |
 | 2,561,682 | Jul. 24, 1951 | B.G. Barnett | Pivoted Jaw Type, Toggle Actuated Wrench | |