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All Patents in class 241/74
Patents 1 - 5 of 5
Picture	Number	Date	Patentee	Title
	6,982	Jan. 01, 1850	J.M. Clark	Combining Grinding and Bolting Machines
	AI216	Jan. 18, 1859	J. Keezer	Hominy mortar
	230,611	Aug. 03, 1880	J.C. Butterfield	Stamp-mill
	879,175	Feb. 18, 1908	F.A. Huntington	Crushing-mill
	1,082,960	Dec. 30, 1913	C.C. Lane	Slow-speed Chilian mill

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