[Class : 7] Pneumatic And Hydraulic Actuators. [Class : 9] Electromechanical Solenoids, Namely Pull Solenoids, Thrust Solenoids, Hinged Armature Solenoids And Holding Solenoids; P.C.B. Relays And Industrial Relays; Electrical Actuators. [Class : 11] Devices For The Switching And Regulation Of Ventilation Dampers And Valves For The Building, Heating And Climate Control Techni...