Emission control devices for engines and drive systems; filters in the form of machine components; air filters for engines and drive systems; filtering machines, engine parts, namely, separators and centrifuges; exhaust pipes and exhaust pipe systems for vehicles and ships; catalytic converters for exhaust gases from internal combustion engines; air filters, fuel filters, oil filters, engine lubricating oil filters, engine oil filters, filters for lubricants as brake grease; filters for liquid hydrocarbons in gears or in engines; housings and supports as parts of engine air filters; parts and accessories for the aforesaid goods, included in this class

Catalytic and thermal scrubbers for industrial air pollution control; smoke exhaust ducts and exhaust gas evacuation installations; air purification system, apparatus for air purification, devices for air purification; air purifiers; parts and accessories for the aforesaid goods, included in this class