74643168
Mar 7, 1995
Jul 23, 1996
installations and equipment for ventilating, namely fans, blowers, ducts, air purifying units, air conditioning units, filtering units for removal of particulate matter, heat exchangers, dehumidifiers, electric lighting fixtures and bulbs for use in ventilation systems, ventilating louvers, and air distribution plenums, all for commercial and industrial use
Environmental Control Apparatus