| 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} |
| 571 | DF | .~.~ Electrical test sensing property of item {2} |
| 573 | | .~.~.~ Electrical component tested {2} |
| 574 | DF | .~.~.~.~> Resistor or capacitor |
| 575 | DF | .~.~.~.~> Lamp or battery |