| 474 / | HD | ENDLESS BELT POWER TRANSMISSION SYSTEMS OR COMPONENTS |
| 237 | DF | FRICTION DRIVE BELT {14} |
| 253 | DF | .~ Including particular means connecting opposite ends to form loop {2} |
| 255 | ![]() | .~.~ Including discrete connector {3} |
| 256 | DF | .~.~.~> Connector comprises element inserted into longitudinal openings in belt ends |
| 257 | DF | .~.~.~> Connector comprises plate clamped externally of belt ends |
| 258 | DF | .~.~.~> Connector comprises cord sewn through belt ends |