US PATENT SUBCLASS 422 / 308
.~.~ Including multiple stages

Current as of: June, 1999
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422 /   HD   CHEMICAL APPARATUS AND PROCESS DISINFECTING, DEODORIZING, PRESERVING, OR STERILIZING

243  DF  PHYSICAL TYPE APPARATUS {8}
307  DF  .~ Heat treating vessel with heating means {2}
308.~.~ Including multiple stages

DEFINITION

Classification: 422/308

Including multiple stages:

(under subclass 307) Apparatus wherein multiple heat-treating means are formed by a single vessel being divided or plural vessels interconnected.