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| All Patents in class 81/54 | |||||
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| Number | Date | Patentee | Title | Type | |
| 226,149 | Apr. 06, 1880 | J.H. Alexander | Wrench | axle nut wrenches | |
| 1,578,331 | Mar. 30, 1926 | R.D. Litwiller | Thrashing Machine Cylinder Wrench | cylinder tooth wrenches | |
| 1,699,870 | Jan. 22, 1929 | A.G. Decker, S.D. Black | Portable tool | handheld power tools | |
| 3,460,408 | Aug. 12, 1969 | J.G. Raymond | Depth gauge | handheld drills | |