74517448
Apr 26, 1994
Aug 8, 2000
indoor air quality monitoring and management systems comprising sensors for measurement of air quality parameters, air flow meters, computers, computer software for indoor air quality data management, computer display monitors, computer printers, and electronic and pneumatic controllers for HVAC (heating, ventilation and air-conditioning) systems and energy management systems, and user instruction manuals sold together therewith
Electrical and Scientific Apparatus