242 / | HD | WINDING, TENSIONING, OR GUIDING |
430 | DF | COMPOSITE ARTICLE WINDING {11} |
434 | DF | .~ Through opening in ring-shaped core {4} |
434.1 | DF | .~.~ By supply coil linked with core {1} |
434.2 | DF | .~.~.~ Supply coil on rigid spool {2} |
434.3 | .~.~.~.~ Having material guide slidable on spool |