| 222 / | HD | DISPENSING |
| 226 | DF | AGITATOR FOLLOWED BY DISCHARGE ASSISTANT AND/OR INTERCONNECTED DISCHARGE CONTROLLER {9} |
| 236 | DF | .~ All rotary {3} |
| 239 | | .~.~ Coaxial {3} |
| 240 | DF | .~.~.~> Helix or vane agitator and terminal element |
| 241 | DF | .~.~.~> Agitator and terminal screw, helix, or vane |
| 242 | DF | .~.~.~> Agitator rigidly mounted on succeeding device |