(under the class definition) Apparatus in which an extended surface structure has a fluid conductor conforming to the surface or has a passage formed within it.
SEE OR SEARCH THIS CLASS, SUBCLASS:
46, for a flexible envelope or cover type of heat exchanger.
49, for a heating and cooling radiant building panel.
56, for a heating or cooling panel making up a part of a building.
89+, for a rotatable drum with a heated or cooled surface.
94, for a heat exchange surface with a scraper. 115+, for a heated or cooled trickler surface.
136, for a heating or cooling conduit and insulation within a barrier or panel.
