Anti-pollution devices for engines including diesel, gas and petrol engines; exhaust gas filters for diesel engines, including parts and fittings thereof; exhaust gas filters for internal combustion engines, parts and fittings therefore; exhaust filters for engines; filters for vehicle engines; filters being parts of machines; anti-pollution devices for reciprocating engines; silencers being parts of exhaust systems; exhaust silencers; catalytic converters; catalytic converter units for vehicle exhausts; emission control apparatus (catalytic converters) for exhausts; exhaust apparatus (parts of machines); mufflers (parts of exhaust systems); exhaust mufflers for watercraft; mufflers (parts of machines); mufflers for engines; exhaust manifold for engines; exhausts for engines; fan belts for vehicle engines; fan belts for engines; fans for cooling vehicle engines; fans for engines; filter housings being parts of engines; filters (parts of machines or engines); exhaust filters for engines; filters for vehicle engines; high temperature exhaust filters; exhaust gas filters for engines including diesel engines; filters being parts of engines for cleaning air; filters being parts of engines for cooling air; filters for cleaning cooling air (for engines); filters for internal combustion engines; filter housings being parts of machines; mechanical control apparatus for engines; exhaust systems; exhaust systems for vehicles; exhausters being suction ventilators; exhausts; sound absorbers (silencers) being parts of exhaust systems for machines; sound absorbers (silencers) being parts of vehicle exhaust systems; sound absorbers being parts of machines; soundproof hoods (parts of machines); gas intake apparatus; intake and exhaust silencers; engines for compressors; engines for construction vehicles; engines for fixed installations; engines for marine use; apparatus (machines) for filtering gases; apparatus for compressing natural gas; filters for gases (machines); filters for hot gases for use with internal combustion engines; electronic fuel injection apparatus for internal combustion engines (other than for land vehicles); engine fuel injection apparatus (other than for land vehicles); fuel injection apparatus; fuel injection apparatus for internal combustion engines; fuel injection devices for internal combustion engines; fuel injection pumps; fuel injection systems for engines; dust exhausting installations for cleaning purposes; dust removing installations for cleaning purposes; heat exchanges (parts of machines); bellows (machines); blowing machines for exhaustion of dust; blowing machines for the compression, exhaustion and transport of gases; reciprocating feeders (parts of machines)