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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	transportation

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