241 / | HD | SOLID MATERIAL COMMINUTION OR DISINTEGRATION |
* | DD | PROCESSES {17} |
24.1 | DF | .~ With classifying or separating of material {9} |
24.12 | DF | .~.~ Of plural, diverse materials {8} |
24.19 | DF | .~.~.~ Including fibrous material, e.g., paper {2} |
24.21 | .~.~.~.~ Sorting by use of sieve |