219 / | HD | ELECTRIC HEATING |
200 | DF | HEATING DEVICES {14} |
385 | DF | .~ Combined with container, enclosure, or support for material to be heated {12} |
391 | DF | .~.~ Oven type {12} |
409 | DF | .~.~.~ With heating unit structure or composition {2} |
411 | .~.~.~.~ With infrared generating means |