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| All Patents in class 81/100 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,872,710 | Aug. 23, 1932 | A.K. Ersland | Wrench | quick adjust wrenches | |
| D162,856 | Apr. 10, 1951 | E. Matthews | Adjustable Wrench | self-adjust wrenches | |
| 2,645,966 | Jul. 21, 1953 | G.D. Mead | Pipe Wrench With Ratchet-Controlled Movable Jaw | pipe wrenches | |
| 2,724,301 | Nov. 22, 1955 | M.G. Parent, L.P. Voisin | Locking Means for the Movable Jaw of a Slidable Side Jaw Wrench | quick adjust wrenches | |
| 3,192,805 | Jul. 06, 1965 | H.H. Manning | Pliers | pliers type wrenches | |