242 / | HD | WINDING, TENSIONING, OR GUIDING |
520 | DF | CONVOLUTE WINDING OF MATERIAL {17} |
522 | DF | .~ With cutting, perforating, or notching {4} |
526 | .~.~ Transverse cutting {4} | |
526.1 | DF | .~.~.~> Perforating or notching |
526.2 | DF | .~.~.~> With winding of flexible cutter |
526.3 | DF | .~.~.~> Special end forming (e.g., tapering) |
527 | DF | .~.~.~> Knife shiftable to sever material {3} |