Electric propulsion ship system having drone deck for amphibious drone
Straight bevel gear for boat with outboard engine using electronic propulsion
A study on dynamic motion and wave power in multi-connected wave energy converter
ELECTRIC OUTBOARD DRIVE HAVING EXCELLENT WEAR RESISTANCE AND CORROSION RESISTANCE
VOLTAGE BALANCING APPARATUS BATTERY CELLS AND METHOD THEREOF
WORKING PLATFORM FOR INSTALLING AND MAINTAINING OF ELEVATOR
A study on dynamic motion and wave power in multi-connected wave energy converter