B66C 1/08

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Patent/Pub #TitleFiling DateIssue/Publication DatePatent Owner
9190200 Method and system for moving materialSep 09, 13Nov 17, 15EPHAUGH, INC.
8919465 Construction machineDec 08, 10Dec 30, 14SUMITOMO(S.H.I.) CONSTRUCTION MACHINERY CO., LTD.
5998944 Method and apparatus for controlling a lifting magnet of a materials handling machineJul 31, 98Dec 07, 99CATERPILLAR INC., MATERIALS HANDLING CRANE SYSTEMS, INC.,
5977730 Method and apparatus for controlling the flow of hydraulic fluidAug 03, 98Nov 02, 99CATERPILLAR INC.
5959416 Method and apparatus for controlling a lifting magnet of a materials handling machineMar 07, 97Sep 28, 99CATERPILLAR INC.
5677821 Method and device for detecting full magnetization of electro-permanent magnetsNov 30, 95Oct 14, 97MARITIME HYDRAULICS AS, Maritime Hydraulics A.C.,