US PATENT SUBCLASS 514 / 497
.~.~.~ Nitrogen containing

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

1  DF  DESIGNATED ORGANIC ACTIVE INGREDIENT CONTAINING (DOAI) {29}
492  DF  .~ Heavy metal containing DOAI {11}
496  DF  .~.~ Mercury {1}
497.~.~.~ Nitrogen containing

DEFINITION

Classification: 514/497

Nitrogen containing:

(under subclass 496) Subject matter in which the heavy metal containing compound also contains a nitrogen atom.