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| All Patents in class 81/144 | |||||
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| Number | Date | Patentee | Title | Type | |
| 780,305 | Jan. 17, 1905 | H.H. Riggin | Wrench | quick adjust wrenches | |
| 805,793 | Nov. 28, 1905 | J.P. Hanlon | Wrench | screw adjust wrenches | |
| 825,720 | Jul. 10, 1906 | J.C. Hackett | Wrench | axle nut wrenches | |