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| Patents for American Wrench Co. | |||||
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| Number | Date | Patentee | Title | Type | |
| 267,228 | Nov. 07, 1882 | B.F. Lancaster | Carriage Wrench | axle nut wrenches that lock nut to wheel hub | |
| 376,891 | Jan. 24, 1888 | B.F. Lancaster | Wrench | screw adjust wrenches | |