73095492
Aug 3, 1976
Jan 9, 1979
APPARATUS FOR USE PARTICULARLY IN WASTE WATER PURIFICATION-NAMELY, INSTALLATIONS FOR HEATING AND COOLING, FLOTATION AND FLOCCULATION EQUIPMENT, SUCH AS FLOTATION APPARATUS, AERATORS, OXYGENATORS AND MIXERS, AND FILTERS FOR DISPOSAL OF SUSPENDED SOLIDS FROM LIQUIDS
Environmental Control Apparatus