Obstacle detector for a descending or ascending load
Off-road snow jack
Offshore crane wave motion compensation apparatus
Oil well service rig
One-way winch brake
Open loop control with velocity threshold for pneumatic hoist
Operating device for electric chain block
Operating device for electric hoist
Operating device for electric hoist
Operating force controlling device for operating lever
Opposed-rope hoist driven telescoping mast
Overhead hoist and sling apparatus for removing, storing and rep
Overhead hoist assemblies
Overhead storage system
Overload avoiding arrangement for a hoist
Overload preventing apparatus in hoist
Overload prevention clutch assembly
Overload protection device in air-operated lifting devices
Overload-preventing device for winch
Overwinding prevention device for winch