| 414 / | HD | MATERIAL OR ARTICLE HANDLING |
| 467 | DF | SELF-LOADING OR UNLOADING VEHICLES {8} |
| 507 | DF | .~ Conveyor {12} |
| 529 | DF | .~.~ Load-engaging roller or rollerway {4} |
| 532 | DF | .~.~.~ Shiftably or removably supported on vehicle {2} |
| 535 | | .~.~.~.~ Vertically shiftable |