| 209 / | HD | CLASSIFYING, SEPARATING, AND ASSORTING SOLIDS |
| 233 | DF | SIFTING {16} |
| * | DD | .~ Plane sifters {2} |
| * | DD | .~.~ Horizontal and inclined {4} |
| 352 | DF | .~.~.~ Stationary {2} |
| * | | .~.~.~.~ With agitators {2} |
| 357 | DF | .~.~.~.~.~> Reciprocating |
| 358 | DF | .~.~.~.~.~> Rotating |