Brackets for and electric car for kids using the same
License plate reading system with vehicle identification function
APPARATUS AND METHOD OF AUTOMATICALLY CALLING ELEVATOR BASED ON USER SCHEDULE
GROUP CALL PATTERN BASED ELEVATOR CALL CONTROL APPARATUS
Inspection method using track circuit safety check device
Railway Signalling System for Train-borne System and Maintenance Service Efficiency
Rail circuit monitoring system using rail fracture signal and image signal
Inspection method using track circuit safety check device
Rail fracture detection device using high-pressure impulse track circuit device