US PATENT SUBCLASS 424 / 603
.~.~.~ Pyrophosphate

Current as of: June, 1999
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424 /   HD   DRUG, BIO-AFFECTING AND BODY TREATING COMPOSITIONS

600  DF  INORGANIC ACTIVE INGREDIENT CONTAINING {20}
601  DF  .~ Phosphorus or phosphorus compound {4}
602  DF  .~.~ Calcium containing {1}
603.~.~.~ Pyrophosphate

DEFINITION

Classification: 424/603

Pyrophosphate:

(under subclass 602) Compositions which contain calcium pyrophosphate.