422 / | HD | CHEMICAL APPARATUS AND PROCESS DISINFECTING, DEODORIZING, PRESERVING, OR STERILIZING |
129 | DF | CHEMICAL REACTOR {28} |
224 | DF | .~ Including internal mixing or stirring means {2} |
225 | DF | .~.~ Mechanical type stirring means {4} |
228 | .~.~.~ Including flow directing baffle attached directly to reaction chamber wall |