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All Patents in class 209/397
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	18,444	Oct. 20, 1857	A. Gaar	Screen for grain-separators
	21,628	Sep. 28, 1858	F.W. Robinson	Improvement in riddles for threshing-machines
	124,068	Feb. 27, 1872	A. Lane	Improvment in Corn Husking and Shelling Machnes

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