| 222 / | HD | DISPENSING |
| 424.5 | DF | SUPPLY CONTAINERS WITH TRAPS {3} |
| 425 | DF | .~ With trap chamber cutoffs {11} |
| 434 | ![]() | .~.~ With discharge volume varying means {4} |
| 435 | DF | .~.~.~> With means to prevent adjustment during discharge |
| 436 | DF | .~.~.~> Trap chambers in series |
| 437 | DF | .~.~.~> Barometric or angle of repose |
| 438 | DF | .~.~.~> With means to change trap chamber volume {2} |