| 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} |
| 659 | DF | .~.~ Sorting items by size {3} |
| 660 | DF | .~.~.~ Item of particular size passed through gauging passage between separate elements {9} |
| 667 | DF | .~.~.~.~ Gauging passage between rotatable elements {6} |
| 669 | | .~.~.~.~.~ Helical roller |