Control system for balancing hoist
Control system for plurality of winches
Controlling oceanic trawls
Cooling of drive for mine friction hoist
Coupling and power control device
Crab pot line hauler
Crane control for the control of a hoisting gear of a crane
Crane with redundant hoist arrangement and method of using same
Cranes, derricks, or the like lifting gear
Crown block and method of making sheaves
Crown out-floor out device for a well service rig