| 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} |
| 600 | DF | .~.~ Sensor contacts item {1} |
| 601 | | .~.~.~ Gauge {3} |
| 602 | DF | .~.~.~.~> Relatively movable calipers closed against item |
| 603 | DF | .~.~.~.~> Sheet gauging |
| 604 | DF | .~.~.~.~> Sensor generates electrical signal {1} |