US PATENT SUBCLASS 34 / 451
.~.~.~ Plural treating chambers

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

282  DF  PROCESS {24}
443  DF  .~ Gas or vapor contact with treated material {17}
444  DF  .~.~ Sheet, web, or strand {7}
451.~.~.~ Plural treating chambers

DEFINITION

Classification: 34/451

Plural treating chambers:

(under subclass 444) Process wherein the treated material is treated in more than one gas or vapor treating chamber.