74340013
Dec 14, 1992
Jul 12, 1994
Active Trademark
water treatment systems comprising ultraviolet irradiation lamps, valves and controls sold as point of use * or * point of entry [ or residential ] units [, including spas, for residential, ] for industrial and municipal water purification by vertical UV disinfection, horizontal UV disinfection, closed chamber UV disinfection or pressure UV disinfection
Environmental Control Apparatus