219 / | HD | ELECTRIC HEATING |
200 | DF | HEATING DEVICES {14} |
385 | DF | .~ Combined with container, enclosure, or support for material to be heated {12} |
443.1 | DF | .~.~ Exposed horizontal planar support surface for material to be heated (e.g., hot plate, etc.) {13} |
465.1 | DF | .~.~.~ Heating element contacting planar underside of the exposed horizontal planar support surface (e.g., sheet metal, etc.) {2} |
467.1 | .~.~.~.~ Support for the heating element |