| 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} |
| 675 | DF | .~.~.~.~ Gauging passage between stationary elements (e.g., bars, slats, etc.) {2} |
| 677 | DF | .~.~.~.~.~ Items move longitudinally of elongate elements {2} |
| 679 | | .~.~.~.~.~.~ Width of gauging passage varies |