(under subclass 85) Devices that are adapted to receive or hold substances which are heated to incandescence by gas or similar burners. These devices are usually employed in
fireplaces or in open-front heaters.
SEE OR SEARCH THIS CLASS, SUBCLASS:
86+, for related subject matter.
SEE OR SEARCH CLASS
431, Combustion,
326+, for a radiant surface burner and subclasses 347+ for a burner having an incandescing or reflecting component.