[Class : 7] Steam Traps; Nitrogen Oxide Traps For Exhaust Systems Being Parts Of Internal Combustion Engines; Fittings For Engine Boilers; Feeding Apparatus For Engine Boilers; Pump Control Valves; Valves [Parts Of Machines]; Valves As Machine Components; Pressure Valves [Parts Of Machines]; Pump Impellers; Pneumatic Pumps; Pump Control Valves; Pneumatic Controls For Motors; Pneumatic Controls For Machines; Hydraulic Controls For Engines; Mechanical Control Apparatus For Machines; Control Valves For Regulating The Flow Of Gases And Liquids [Parts Of Machines]; Pneumatic Valve Actuators; Cryogenic Valves Being Parts Of Machines; Automatic Inlet Control Valves For Reciprocating Air Compressors; Intake And Exhaust Air Flow Vane Assembly Device For Use In An Internal Combustion Engine; Pressure Regulators Being Parts Of Machines