U.S. federal trademark · Serial No. 75895993
WASTE WATER PURIFICATION AND SEWAGE DISPOSAL PLANTS; WATER TREATMENT UNITS, NAMELY, FILTERS, REACTORS, DIGESTERS, DISINFECTORS, SEDIMENTORS, GASIFICATION UNITS AND NITRIFICATION REACTORS
DESIGN AND ENGINEERING OF WASTE WATER PURIFICATION AND SEWAGE DISPOSAL PLANTS AND PARTS OF THE AFOREMENTIONED PLANTS, NAMELY NITRIFICATION UNITS
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