US PATENT SUBCLASS 252 / 178
.~ Deoxidant or free-metal containing

Current as of: June, 1999
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252 /   HD   COMPOSITIONS

175  DF  WATER-SOFTENING OR PURIFYING OR SCALE-INHIBITING AGENTS {4}
178.~ Deoxidant or free-metal containing

DEFINITION

Classification: 252/178

(under subclass 175) Compositions which contain deoxidants or free metals.

SEE OR SEARCH CLASS

510, Cleaning Compositions for Solid Surfaces, Auxiliary Compositions Therefor, or Processes of Preparing the Compositions,

248, for descaling agents including a free element component (e.g., metal).