[Class : 7] Electric And Pneumatic Door Openers And Closers For Vehicle Doors, In Particular Automatically Operated Railway Vehicle Doors; Control Apparatus For Electric And Pneumatic Door Openers And Closers For Vehicle Doors, In Particular Railway Vehicle Doors, And Extendable And Retractable Boarding Aids For Railway Vehicles, In Particular Ramps, Sliding Steps And Folding Steps.[Class : 9] Detectors And Sensors For Monitoring, Controlling And Regulating The Movement Of Doors; Door Opening And Closing Detecting Sensors; Electric And Electromechanical Obstruction Sensors, Consisting Of Detectors, Measuring Apparatus And Apparatus For The Output Of Electrical Signals.[Class : 12] Vehicle Doors, In Particular Automatically Operated Vehicle Doors For Railway Vehicles, In Particular Exterior Doors, Interior Doors, Connecting Doors, Sliding Doors, Driver's Cab Doors, Pivot Sliding Doors, Swing Doors; Boarding Aids For Railway Vehicles, In Particular Ramps, Sliding Steps, Folding Steps, Gap Bridging Devices; Trapping Protection Devices Being Parts Of Vehicle Door Systems; Parts For The Aforesaid Goods; In Particular The Aforesaid Goods For Trams And Urban Railways, Underground And Overground Railways, Passenger Coaches And High Speed Trains.