[Class : 42] Monitoring Elevators, Escalators, Lifts, Moving Walkways, Machine Roomless Hydraulic Elevator Systems, Related Carrier Performance And Diagnosing Elevators, Escalators, Lifts, Moving Walkways, Machine Roomless Hydraulic Elevator Systems And Related Carrier Performance Problems Utilizing Electronic Equipment.[Class : 7] Elevators, Escalators, Moving Walkways And Parts Thereof; Elevator Door Operators Comprised Of Motors And Linkages To Open And Close Elevator Doors; Machine Roomless Hydraulic Elevators And Component Parts Therefor; Hydraulic Elevators And Parts Therefor; Elevator Operating Apparatus Used For Passenger Entry On Floor Designation.[Class : 9] Electronic Controls For Use With Elevators, Lifts, Escalators, Moving Walkways, Machine Roomless Hydraulic Elevator Systems And Related Carriers; Computer Software For Elevators, Lifts, Escalators, Moving Walkways, Machine Roomless Hydraulic Elevators; Computer Software For Controlling Door Operations, Electrical Controllers For Door Operation And Door Control, Electrical Position/Velocity Sensors For Controlling Door Operation; Electronic Safety Control To Prevent The Closing Of Elevator Or Related Carrier Doors Until All Passengers Or Cargo Are Clear Thereof; Elevator Controller, Elevator Dispatcher, And Elevator Drive Control.[Class : 37] Installation, Maintenance And Repair Of Elevators, Lifts, Escalators, Moving Walkways, Machine Roomless Hydraulic Elevator Systems And Related Carriers And Parts Thereof.