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All Patents in class 172/680
Patents 1 - 6 of 6
Picture	Number	Date	Patentee	Title
	3,052	Apr. 15, 1843	J. Gallatin	Improvement in Plows
	79,547	Jul. 07, 1868	G.W. Zeigler, W.D. Burgess	Plow
	111,975	Feb. 21, 1871	A. Rickard	Improvement in plows
	331,284	Dec. 01, 1885	J.R. Davis	Clevis
	865,141	Sep. 03, 1907	H. Wiard	Plow
	976,721	Nov. 22, 1910	H.C. Clay	Gang Plow

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