| 474 / | HD | ENDLESS BELT POWER TRANSMISSION SYSTEMS OR COMPONENTS |
| 202 | DF | POSITIVE DRIVE BELT {3} |
| 206 | DF | .~ Belt formed of rigid links {9} |
| 218 | ![]() | .~.~ Including diverse member for interconnecting opposite ends to complete loop (e.g., repair link for broken chain, etc.) |