Automobiles and their parts and fittings in the nature of exhaust emission control systems, namely, catalytic converters for motors and engines and catalytic converters containing catalyst substrates for cleaning exhaust gases in motor vehicles, all sold as integral parts of automobiles

Catalytic converters for motors and engines; catalytic converters containing catalyst substrates for cleaning exhaust gases in motor vehicles

Catalytic converters for motors and engines; catalytic converters containing catalyst substrates for cleaning exhaust gases in motor vehicles

Catalytic converters for motors and engines; catalytic converters containing catalyst substrates for cleaning exhaust gases in motor vehicles