US PATENT SUBCLASS 73 / 23.33
.~.~.~ Solid content

Current as of: June, 1999
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73 /   HD   MEASURING AND TESTING

23.2  DF  GAS ANALYSIS {15}
23.31  DF  .~ Gas of combustion {1}
23.32  DF  .~.~ Air-fuel ratio {1}
23.33.~.~.~ Solid content

DEFINITION

Classification: 73/23.33

Solid content:

(under subclass 23.32) Subject matter wherein the nature or amount of particulate matter in the gas of combustion is determined.