| 62 / | HD | REFRIGERATION |
| 404 | DF | GAS CONTROLLER OR DIRECTOR {5} |
| 407 | DF | .~ Cooled gas directed relative to cooled enclosure {7} |
| 420 | ![]() | .~.~ Directed relative to ice container {2} |
| 421 | DF | .~.~.~> Foraminous wall or bottom ice container {1} |
| 424 | DF | .~.~.~> Gas flow passage means under ice container |