9
Computer analysis and product selection software in the field of heating, cooling, refrigerating, ventilation, energy recovery, and sound control; electronic, hydraulic, pneumatic and digital building controls for controlling heating, cooling, refrigerating, ventilating, air quality and energy recovery equipment; sound attenuators for use in or around heating, cooling, refrigerating, ventilating, air quality and energy recovery equipment
11
Heating, cooling, refrigerating, ventilation and energy recovery equipment, namely, air handling equipment and packaged and custom-engineered air conditioners, chillers, gas, electric, hydronic and solar heaters, ventilation fans for residential, commercial and industrial use, humidifiers, dehumidifiers, and steam generators; heating, ventilating and air conditioning products, namely, ventilating louvers, fan and blower silencers, and transfer silencers; sound silencers incorporated into or on heating, cooling, refrigerating, ventilating, air quality and energy recovery equipment
17
Acoustical panels for buildings; acoustical sidewall insulation; acoustical architectural products, namely, acoustical louvers, acoustical plenums, internal sound attenuators and liners
37
Construction of environmental control centers for buildings that incorporate equipment such as pumps, boilers and electrical control centers
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