75687354
Apr 20, 1999
Sep 11, 2001
Computers for use in operating ventilation, cooling and heating systems; measuring and regulating apparatus and instruments, namely, sensors for temperature, humidity, wind velocity and direction, pressure, gases, and other environmental conditions; thermostats
Electrical and Scientific ApparatusVentilation apparatus and other apparatus for regulating and controlling climate, namely, ventilators, air distributors, regulators, separators, air conditioners, air filters, air pumps, ventilating fans, air purifiers
Environmental Control Apparatus