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All Patents in class 414/592
Patents 1 - 2 of 2
Number	Date	Patentee	Title	Type
2,494,591	Jan. 17, 1950	O.P. Smith	Invalid lift
2,560,131	Jul. 10, 1951	F.P. Hopfeld, A.M. Sasgen	Hand truck with elevator platform	pallet jacks, forklifts, elevating trucks

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