IC 009. US 021 023 026 036 038. G & S: Electric and electronic monitoring, regulation and control apparatuses and devices, namely, electric and electronic monitoring, regulating and control apparatuses for use in monitoring the composition of exhaust gas emitted, in particular the amount of carbon monoxide, nitrogen and hydrocarbon emitted, in monitoring the temperature of the exhaust gas emitted, in initiating suitable measurements for the purpose of reduction of the temperature or the amount of the substances listed previously by exhaust gas catalytic converters
IC 012. US 019 021 023 031 035 044. G & S: Internal combustion engines for land vehicles
IC 040. US 100 103 106. G & S: Recycling of internal combustion engines, exhaust gas catalytic converters and catalytic converter carriers
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