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| All Patents in class 68/117 | |||||
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| Number | Date | Patentee | Title | Type | |
| 26,572 | Dec. 27, 1859 | L.A. Dole | Washing-machine | washing machines | |
| 52,273 | Jan. 30, 1866 | W.M. Doty, E.P. Doty, E. Doty | Washing-machine and churn-power | washing machines | |
| 56,910 | Aug. 07, 1866 | E.P. Doty, E. Doty, W.M. Doty | Improvement in washing-machines | washing machines | |
| 73,701 | Jan. 28, 1868 | E.P. Doty, E. Doty | Improved washing-machine | washing machines | |
| 78,940 | Jun. 16, 1868 | W.M. Doty | Improved washing-machine | washing machines | |