BETZ
								Chemicals and Chemical Compositions for Water Treatment-Namely, Oxygen Scavengers, Deposit Control Agents, Polymers, Paper-Making Chemicals, Emulsion Breakers, Crystallization Inhibitors, Sludge and Wastewater Conditioners, Scale-Removal Agents, Drainage Aids, Antioxidants, Resin Cleaners, and Oil Recovery Compounds; and Chemicals and Chemical Compositions for Use as Fuel Conditioners and for the Treatment of Internal Boiler or Furnace Systems-Namely, Fireside, Slag and Cold-End Additives, an...
                                Cancelled  ·  April 24, 1978  ·  73167794  ·