| 414 / | HD | MATERIAL OR ARTICLE HANDLING |
| 572 | DF | LOAD-TRANSPORTING TYPE VEHICLE TO BE LOADED OR UNLOADED, OR EXTERNAL MEANS FOR THE LOADING OR UNLOADING, OR FOR COOPERATING THEREWITH, OF SUCH A VEHICLE {4} |
| 575 | DF | .~ Means comprises device for changing the attitude of a vehicle, or its load body, relative to the horizontal for unloading by gravity {3} |
| 577 | DF | .~.~ Pivotably movable structure for supporting a vehicle in toto, positioned, at least initially, in underlying relation thereto {4} |
| 581 | | .~.~.~ Having axis of pivot parallel to longitudinal axis of vehicle |