| 392 / | HD | ELECTRIC RESISTANCE HEATING DEVICES |
| * | DD | HEATING DEVICES (CLASS 219 SUBCLASS 200) {11} |
| 386 | DF | .~ Vaporizer {7} |
| 394 | DF | .~.~ Liquid evaporant (e.g., water, etc.) {6} |
| 403 | DF | .~.~.~ Container with self-contained evaporant supply {2} |
| 405 | ![]() | .~.~.~.~ With separate heating chamber {1} |
| 406 | DF | .~.~.~.~.~> Removable |