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All Patents in class 68/4
Patents 1 - 2 of 2
Picture	Number	Date	Patentee	Title
	52,273	Jan. 30, 1866	W.M. Doty, E.P. Doty, E. Doty	Washing-machine and churn-power
	78,940	Jun. 16, 1868	W.M. Doty	Improved washing-machine

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