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| All Patents in class 81/134 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,385,994 | Aug. 02, 1921 | A.B. Heimbach | Quickly Adjustable Wrench | quick adjust wrenches | |
| 1,417,210 | May 23, 1922 | A. Shirk | Wrench | pliers type wrenches | |
| 1,585,825 | May 25, 1926 | W.L. Bessolo | Wrench | pipe wrenches | |
| 1,728,282 | Sep. 17, 1929 | E.J. Evans | Monkey Wrench | quick adjust wrenches | |
| 1,785,925 | Dec. 23, 1930 | J.C. Baker | Wrench | quick adjust wrenches | |
| 1,968,783 | Jul. 31, 1934 | J.R. Long | Wrench | pipe wrenches | |