422 / | HD | CHEMICAL APPARATUS AND PROCESS DISINFECTING, DEODORIZING, PRESERVING, OR STERILIZING |
243 | DF | PHYSICAL TYPE APPARATUS {8} |
255 | DF | .~ Means separating or dissolving a material constituent {3} |
285 | DF | .~.~ And heating means {2} |
288 | .~.~.~ Including means removing vapor from treated material {2} | |
289 | DF | .~.~.~.~> And direct contact heating fluid means within separating or dissolving chamber vessel |
290 | DF | .~.~.~.~> And indirect contact heating fluid means in separating or dissolving chamber |