All Patents in class 254/117


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All Patents in class 254/117
Patents 1 - 2 of 2
Picture	Number	Date	Patentee	Title
	49,090	Aug. 01, 1865	G.L. Cummings	Improvement in carriage-jacks
	2,092,117	Sep. 07, 1937	E.A. Hall	Valve Facing Means