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All Patents in class 180/12
Patents 1 - 4 of 4
Picture	Number	Date	Patentee	Title
	581,951	May 04, 1897	W.O. Worth	Traction Engine
	1,270,480	Jun. 25, 1918	L. McCloskey	Tractor
	1,396,956	Nov. 15, 1921	P.R. Hawthorne	Tractor
	1,423,962	Jul. 25, 1922	F.C. Olin	Tractor

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