71357523
Oct 26, 1934
Mar 26, 1935
PREPARATION FOR THE TREATMENT OF WATER USED IN BOILERS FOR POWER PLANTS, HEATING SYSTEMS, AND HOT WATER SUPPLY BOILERS AND HEATING UNITS AND DESIGNED TO ELIMINATE SCALE, RUST, CONGESTION, CORROSION AND PITTING IN BOILERS, TANKS AND SYSTEMS
Metal Goods