| 209 / | HD | CLASSIFYING, SEPARATING, AND ASSORTING SOLIDS |
| 233 | DF | SIFTING {16} |
| * | DD | .~ Plane sifters {2} |
| * | DD | .~.~ Horizontal and inclined {4} |
| 352 | DF | .~.~.~ Stationary {2} |
| 353 | DF | .~.~.~.~ Multiple {2} |
| 355 | | .~.~.~.~.~ Superposed {1} |
| 356 | DF | .~.~.~.~.~.~> Zigzag |