(under subclass 371) Devices having a water grate of cage-like or basket-like structure.
SEE OR SEARCH CLASS
110, Furnaces,
294, for furnaces with a magazine the lower part of which has perforations or bars on opposite sides, the air entering on one side and the flame passing out on the other side.
126, Stoves and Furnaces,
513+, for fireplace heaters that are provided with water or steam generating backs and designed to be connected up to heat radiators in distant rooms.
