71677336
Nov 26, 1954
Nov 29, 1955
CHEMICAL COMPOUNDS FOR THE PREVENTION OF CORROSION AND SCALE IN BOILERS, PIPES, AND ENGINE COOLING EQUIMENT, FOR INHIBITING RUST IN WATER SUPPLY, FOR REMOVING SOOT, FOR PREVENTING FUNGUS IN CONDENSERS AND COOLING TOWERS OF AIR CONDITIONERS, AND IN BRINE UTILIZING EQUIPMENT
Metal Goods