| 474 / | HD | ENDLESS BELT POWER TRANSMISSION SYSTEMS OR COMPONENTS |
| 237 | DF | FRICTION DRIVE BELT {14} |
| 266 | ![]() | .~ Including fabric web (e.g., knit, woven, etc.) {2} |
| 267 | DF | .~.~> Fabric having particular knit or weave |
| 268 | DF | .~.~> And additional coating, layer, or reinforcement of diverse kind of material {3} |