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Temperature sensors, thermocouples; pressure sensors, gas sensors for measuring gas concentration, data loggers, carbon dioxide sensors, gas ionization sensors, oxides of nitrogen sensors, oxides of sulfur sensors, hydrocarbon sensors, carbon monoxide sensors, nitrogen sensors

emissions control systems, comprising catalytic converters, catalytic agents, combustion purifiers, diesel oxidation catalysts, three-way catalysts, particulate filters, incinerators, re-burners, and catalytic boosters, sold as a unit; emissions control devices, namely, PCV valves, EGR valves, exhaust piping; anti-pollution devices, namely, catalytic converters, combustion purifiers, diesel oxidation catalysts, three-way catalysts, particulate filters; emission reduction units for motors and engines, namely, catalytic converters; heat exchangers being parts of machines; heat exchangers being parts of engines not for land vehicles

Catalytic heaters, reverse-flow heat exchangers, counter-flow heat exchangers; incinerators, re-burners, heat exchangers not being parts of machines; catalytic boosters, namely, reverse flow heat exchangers combined with a catalyst, reverse flow heat exchangers combined with a three way catalyst, reverse flow heat exchangers combined with a combination of an oxidation catalyst and a reduction catalyst, reverse flow heat exchangers combined with a diesel oxidation catalyst