| 209 / | HD | CLASSIFYING, SEPARATING, AND ASSORTING SOLIDS |
| 509 | DF | SORTING SPECIAL ITEMS, AND CERTAIN METHODS AND APPARATUS (E.G., POCKET TYPE AND LIGHT RESPONSIVE SORTING, ETC.) FOR SORTING ANY ITEMS {11} |
| 606 | DF | .~ Separating means {33} |
| 638 | DF | .~.~ Items separate by following different trajectories through space {4} |
| 640 | | .~.~.~ Items thrown or falling through space strike surface and rebound with different trajectories |