73151380
Mar 29, 1978
Aug 4, 1981
Chemical Products for the Purification, Neutralization and Detoxification of Contaminated Industrial Waste Waters and the Like
ChemicalsCentrifugal Pumps, Reciprocating Pumps, Proportioning Pumps, Agitators and Conveyors for Use in Installations for the Mechanical and Chemical Treatment of Industrial Waste Waters and the Like
MachineryFiltering Units Comprising Storage Tanks, Agitators, Conveyors, and Consumable Filter Elements, for Use in the Mechanical and Chemical Purification, Neutralization and Detoxification of Contaminated Industrial Waste Waters and the Like
Environmental Control Apparatus