73012935
Feb 8, 1974
Aug 5, 1975
CHEMICAL PREPARATION CONSISTING OF THE ACTIVE INGREDIENTS OF CALCIUM SULPHATE, ALUMINUM SULPHATE, AND BORIC ACID FOR THE TREATMENT OF BODIES OF WATER
ChemicalsAERATION APPARATUS FOR TREATMENT OF BODIES OF WATER TO LOCK UP PHOSPHATES AND IRON AND AERATION OF THE WATER FOR THE REMOVAL OR SUBSTANTIAL REDUCTION OF ALGAE AND AQUATIC WEED GROWTH
Environmental Control Apparatus