| 242 / | HD | WINDING, TENSIONING, OR GUIDING |
| 520 | DF | CONVOLUTE WINDING OF MATERIAL {17} |
| 522 | DF | .~ With cutting, perforating, or notching {4} |
| 525 | DF | .~.~ Longitudinal cutting {5} |
| 525.1 | DF | .~.~.~ Positionally related slitter and winding surface {1} |
| 525.2 | ![]() | .~.~.~.~ Slitter engages winding surface |