All Patents in class 172/260


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All Patents in class 172/260
Patents 1 - 2 of 2
Number	Date	Patentee	Title	Type
1,851,142	Mar. 29, 1932	H.E. Welbourne	Implement hitch	tractor couplings and hitches
2,228,723	Jan. 14, 1941	G. Large	Plow