77686188
Mar 9, 2009
Germicidal ultraviolet lamps, not for medical purposes; dampers, namely, control devices used in air ducts to regulate the flow of air for use in residential heating, ventilating and air-conditioning ductwork; energy recovery ventilators for use in residential heating, ventilating and air-conditioning ductwork for fresh air supply and humidity control
Environmental Control ApparatusEnergy assessment services for the purpose of analyzing energy usage in residential heating, ventilating and air-conditioning systems
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