79050645
Dec 27, 2007
Feb 24, 2009
Thermal heat exchangers; heat exchangers; heat regenerators, heat pumps; apparatus for steam generating, namely, evaporators; apparatus for heat exchanging, namely, evaporators; steam generating installations, cooking ranges, refrigerating appliances and installations, water heaters and refrigerators
Environmental Control ApparatusInstallation, repair and maintenance of industrial installations, and heat exchangers
Building Construction and Repair