75070258
Mar 11, 1996
Sep 23, 1997
heating, ventilating, air conditioning and refrigeration equipment, namely, condensers, air handlers, evaporators, heating elements, fans, compressors, heat pumps, gas and electric heating and cooling units, hydronic heat pumps, cooling towers, air distribution ducts, walk-in and reach-in coolers and freezers, single and multi-zoned packaged and split system air conditioners
Environmental Control Apparatus