Patents for George Marshall Clark


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Patents for George Marshall Clark
Patents 1 - 3 of 3
Picture	Number	Date	Patentee	Title
	369,163	Aug. 30, 1887	G.M. Clark	Disk-harrow
	712,907	Nov. 04, 1902	G.M. Clark	Harrow
	712,996	Nov. 04, 1902	G.M. Clark	Harrow