US PATENT SUBCLASS 123 / 703
.~.~ Exhaust gas composition sensor

Current as of: June, 1999
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123 /   HD   INTERNAL-COMBUSTION ENGINES

434  DF  CHARGE FORMING DEVICE (E.G., POLLUTION CONTROL) {29}
672  DF  .~ Including exhaust gas condition responsive means {11}
703.~.~ Exhaust gas composition sensor

DEFINITION

Classification: 123/703

Exhaust gas composition sensor:

(under subclass 672) Subject matter wherein the transducer senses a constituent in the products of combustion.

SEE OR SEARCH THIS CLASS, SUBCLASS:

494, for charge forming devices having an actuator circuit and specific features of a system sensor or transducer.

SEE OR SEARCH CLASS

204, Chemistry: Electrical and Wave Energy,

406+, for exhaust gas sensors, per se.