B66D 1/39

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Patent/Pub #TitleFiling DateIssue/Publication DatePatent Owner
9962621 Compact hoist systemJun 04, 17May 08, 18Electronic Theatre Controls Inc.
9908755 Lift assembly with load cellsNov 20, 14Mar 06, 18ELECTRONIC THEATRE CONTROLS, INC.
9783399 Rope winchNov 22, 12Oct 10, 17LIEBHERR-COMPONENTS BIBERACH GMBH
9700810 Compact hoist systemDec 21, 12Jul 11, 17ELECTRONIC THEATRE CONTROLS, INC.
9676496 Ground station with shuttled drum for tethered aerial vehiclesDec 30, 13Jun 13, 17GOOGLE LLC, X DEVELOPMENT LLC,
9482064 Drum unit with an arch compensator for a well intervention stringMay 30, 13Nov 01, 16C6 TECHNOLOGIES AS, STIMLINE AS,
9340396 Nested lift assembliesNov 22, 13May 17, 16ELECTRONIC THEATRE CONTROLS, INC.
9260279 Lift assembly with tapered drumsNov 22, 13Feb 16, 16ELECTRONIC THEATRE CONTROLS, INC.
9169102 Drum unit for a well intervention stringDec 21, 12Oct 27, 15C6 TECHNOLOGIES AS, STIMLINE AS,
9038990 Cable winch deviceSep 11, 12May 26, 15LIEBHERR-WERK NENZING GMBH
9016486 Traveling crane having traveler and hoisting winchJul 27, 10Apr 28, 15TEREX MHPS IP MANAGEMENT GMBH
6561451 Measuring cable travel sensor with longitudinal drive for the cable drumDec 22, 99May 13, 03ASM AUTOMATION SENSORIK MESSTECHNIK GMBH
4324386 Battens system for raising and lowering sceneries or similar loads on a stageMay 19, 80Apr 13, 82Not available