| 270 / | HD | SHEET-MATERIAL ASSOCIATING |
| 52.01 | DF | ASSOCIATING OR DISASSOCIATING {11} |
| 58.01 | DF | .~ Sheet associating {13} |
| 58.07 | DF | .~.~ Performing operation on stacks (e.g., binding, cutting) {3} |
| 58.14 | DF | .~.~.~ Plural stackers {2} |
| 58.15 | ![]() | .~.~.~.~ Means to spread apart stackers |