US PATENT SUBCLASS 34 / 196
.~.~.~ Recirculation of treating gas or vapor

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

523  DF  APPARATUS {40}
192  DF  .~ Removable shelf or tray type {4}
195  DF  .~.~ With gas or vapor circulation for contact with treated material {3}
196.~.~.~ Recirculation of treating gas or vapor

DEFINITION

Classification: 34/196

(under subclass 195) Apparatus including means to recirculate the treating gas or vapor in whole or part.

(1) Note. See (1) Note to subclass 219 of this class, for search for gas or vapor recirculation.