74158941
Apr 22, 1991
Sep 22, 1992
water treatment chemicals for stationary aerated bodies of water locking up phosphate and iron from assimilation by plant life for use by governmental bodies such as villages, cities, countries and states and other commercial entities
Chemicalsaeration system comprising a ceramic diffuser, a hose connection and a compressor for use in water treatment by municipalities and other commercial entities
Environmental Control Apparatus