| 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} |
| 261 | DF | .~.~ Liquid-solid contact means {17} |
| 269 | | .~.~.~ Including rotating member {2} |
| 270 | DF | .~.~.~.~> Member is container {2} |
| 273 | DF | .~.~.~.~> Member conveys material into and out of container; e.g., screw propeller, etc. |