| 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} |
| 552 | DF | .~ Condition responsive means controls separating means {13} |
| 592 | DF | .~.~ Responsive to weight of item {2} |
| 593 | DF | .~.~.~ Detecting movement of item support with electrical sensor {2} |
| 594 | | .~.~.~.~ Photodetector |