METHOD AND APPARATUS FOR DETECTING DROWSINESS BY PHYSIOLOGICAL SIGNAL BY USING VIDEO
INTELLECTUAL SAFETY APPARATUS FOR UNDERWATER WORKING DIVER
TRAVELING AID APPARATUS HAVING SEPARATE MOUNTING FRAME
POSITION ADJUSTABLE DRIVING AUXILIARY EQUIPMENT FOR WHEEL CHAIR
Magnetic non-motorized handrails cleaner sterilization device
DRIVING AUXILIARY DEVICE HAVING LIFTING FUNCTION OF WHEELCHAIR FRONT WHEEL
DRIVING AUXILIARY DEVICE FOR OWN APPROACH AT WHEELCHAIR