75447159
Mar 9, 1998
Jan 1, 2002
Electronic controllers; flame and smoke detectors; fire alarms; safety equipment, namely, fire escape ladders, fire and smoke curtains for use in preventing and extinguishing fires; fire extinguishers
Electrical and Scientific ApparatusFresh air ventilators for factories, warehouses, office buildings, retail stores, wholesale stores and shopping malls; solar collectors; air conditioners, humidifiers and dehumidifiers; fire ventilators for exhausting smoke, fumes, gases and vapors; fire hydrants; electric draft regulators and dampers for use in preventing or inhibiting the spread of fire, flames, smoke, fumes, gases, and vapors; ventilating louvers; electric air deodorizers; electrostatic precipitators for cleaning air; ozone electric sterilizers for air; electric fans and diffusers for electric fans
Environmental Control Apparatus