US PATENT SUBCLASS 34 / 74
.~.~.~ With other gas or vapor treatment

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

523  DF  APPARATUS {40}
72  DF  .~ With means to treat gas or vapor {3}
73  DF  .~.~ By vapor condensation {4}
74.~.~.~ With other gas or vapor treatment

DEFINITION

Classification: 34/74

(under subclass 73) Apparatus including means other than the condensing means to treat the treating gases or vapors by the addition or subtraction of substances from the treating fluids.