US PATENT SUBCLASS 34 / 589
.~.~ With plural treating zones or compartments

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

523  DF  APPARATUS {40}
576  DF  .~ With fluid current conveying of treated material {12}
589.~.~ With plural treating zones or compartments {1}
590  DF  .~.~.~> Serpentine path for material

DEFINITION

Classification: 34/589

With plural treating zones or compartments:

(under subclass 576) Subject matter wherein the conveyed material flows through more than one treating area or chamber.