| 241 / | HD | SOLID MATERIAL COMMINUTION OR DISINTEGRATION |
| * | DD | APPARATUS {41} |
| 170 | DF | .~ Loose grinding body comminutor (e.g., ball or rod mills) {6} |
| 172 | DF | .~.~ With independent means moving or guiding the material and/or grinding bodies in receptacle {1} |
| 173 | DF | .~.~.~ Rotary grinding body pusher (e.g., ball chasers) {1} |
| 174 | | .~.~.~.~ Horizontal axis |