74389543
May 12, 1993
Jul 11, 1995
underwater aeration units for restoring the water quality of lakes and reservoirs, for the aeration of water in lakes, reservoirs and rivers, for lake restoration through agitation or movement of parts of lakes, water courses, water accumulations or bodies of water, comprising compressed air supply hoses, pumps, compressors, pressure nozzles, air lifts, bubble generators, bubble curtains, air bells, mixers, stirrers and ejectors
Environmental Control Apparatusconsultation engineering, testing, investigation and chemical analyses services for investigating and diagnosing the water quality of lakes, rivers, watercourses, ponds and reservoirs and for testing for pollution thereof; custom design of restoration projects thereof
Computer and Scientific