US PATENT SUBCLASS 34 / 567
.~.~.~ Exhaust controlled by solvent concentration

Current as of: June, 1999
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34 /   HD   DRYING AND GAS OR VAPOR CONTACT WITH SOLIDS

523  DF  APPARATUS {40}
524  DF  .~ With automatic control {11}
565  DF  .~.~ Of flow of gas or vapor treating fluid {6}
567.~.~.~ Exhaust controlled by solvent concentration

DEFINITION

Classification: 34/567

Exhaust controlled by solvent concentration:

(under subclass 565) Apparatus wherein the removal of exiting treating gas or vapor is controlled by the amount of a solvent contained in the treating gas or vapor.