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| All Patents in class 81/143 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,455,423 | May 15, 1923 | C.P. Brown | Wrench | quick adjust wrenches | |
| 1,520,653 | Dec. 23, 1924 | H.O. Johnson | Wrench | quick adjust wrenches | |
| 3,257,878 | Jun. 28, 1966 | A.F. Andersen | Adjusting Ratcheting Wrench Having Rack Means For Immobilizing The Jaws | quick adjust wrenches | |