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All Patents in class 209/437
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	9,617X	Apr. 28, 1836	W. Davis	Sweeping and washing ores
	9,617	Mar. 15, 1853	H. Bessemer	Machines for Expressing Sugar-Cane Juice
	24,901	Jul. 26, 1859	J.N. Wyckoff, T.M. Fell	Ore Washer and Amalgamator

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