AUTONOMOUS UNMANNED AERIAL VEHICLE AND CONTROL METHOD THEREFOR
AUTONOMOUS UNMANNED AERIAL VEHICLE AND CONTROL METHOD IN THE SAME
ROTARY HYDRAULIC WINCH TYPE HEAVE MOTION COMPENSATION SYSTEM
Hoisting Apparatus and drilling marine structure having the same
CONTINUOUS CHANGE SPEED TYPE WINCH FOR HOISTING IN DRILL SHIP
Mechanical energy recycling device and method of floating vessel including drilling winch
Mechanical energy recycling device and method of floating vessel including drilling winch
Hoisting Apparatus and drilling marine structure having the same
ACTIVITY MODE CHANGEABLE DRILLING RIG AND DRILLING STRUCTURE WITH THE SAME
DRILLING SYSTEM AND METHOD OF USING APPARATUS FOR MOVING OTHER TYPES PIPE