| 414 / | HD | MATERIAL OR ARTICLE HANDLING |
| 331.01 | DF | MOVABLE RACK HAVING SUPERPOSED, CHARGE-SUPPORTING ELEMENTS, AND EXTERNAL MEANS FOR CHARGING OR DISCHARGING ELEMENTS {5} |
| 331.02 | ![]() | .~ Rotating or circulating rack {3} |
| 331.03 | DF | .~.~> Charge-supporting elements moving horizontally |
| 331.04 | DF | .~.~> Charge-supporting elements moving vertically |
| 331.05 | DF | .~.~> Rack as a unit rotating about vertical axis |