| 414 / | HD | MATERIAL OR ARTICLE HANDLING |
| 467 | DF | SELF-LOADING OR UNLOADING VEHICLES {8} |
| 539 | DF | .~ Loading or unloading by other carrier or mover means, and the load movement thereof {3} |
| 546 | DF | .~.~ Raising or lowering of load or load holder includes curvilinear movement {8} |
| 551 | DF | .~.~.~ Load holder located relative to vehicle in such manner as to accrue load during travel of vehicle {3} |
| 552 | | .~.~.~.~ Carrier or mover pivots about axis parallel to longitudinal axis of vehicle |