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All Patents in class 460/87
Patents 1 - 3 of 3
Number	Date	Patentee	Title	Type
2,467	Feb. 21, 1842	A. Ralston	Grain Separator	corn and grain separators
5,509	Apr. 11, 1848	A. Smith	Grain Separator	corn and grain separators
RE342	Jan. 15, 1856	A. Ralston	Grain Separator	corn and grain separators

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