[Class : 7] Machines And Machine Tools; Motors And Engines (Except For Land Vehicles); Parts And Fittings For Motors And Engines; Exhaust Manifolds And Exhaust System Components For Engines Other Than For Land Vehicles; Silencers And Mufflers For Industrial Engines; Exhaust Pipes, Tailpipes And Emission Control Apparatus For Machines And Engines; Catalytic Converters Being Parts Of Machines; Turbochargers And Superchargers Being Parts Of Machines; Air Filters And Oil Filters For Motors And Engines; Mechanical Components For Use In Performance Enhancement Of Engines (Other Than For Land Vehicles); Engine Tuning And Performance Optimization Apparatus; All Included In Class 7.