| 219 / | HD | ELECTRIC HEATING |
| 200 | DF | HEATING DEVICES {14} |
| 520 | DF | .~ With heater-unit housing, casing, or support means (e.g., frame and single sheet) {13} |
| 524 | ![]() | .~.~ Comprising hinged or separable compartment (e.g., waffle iron type) {1} |
| 525 | DF | .~.~.~> With plurality of or sectional heating means |