US PATENT SUBCLASS 514 / 132
.~.~.~ Nitro group is directly bonded to a benzene ring which benzene ring is either bonded directly bonded to phosphorus or indirectly bonded to phosphorus through a chalcogen

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514 /   HD   DRUG, BIO-AFFECTING AND BODY TREATING COMPOSITIONS

1  DF  DESIGNATED ORGANIC ACTIVE INGREDIENT CONTAINING (DOAI) {29}
75  DF  .~ Phosphorus containing other than solely as part of an inorganic ion in an addition salt DOAI {22}
131  DF  .~.~ Nitro group bonded to a carbon {1}
132.~.~.~ Nitro group is directly bonded to a benzene ring which benzene ring is either bonded directly bonded to phosphorus or indirectly bonded to phosphorus through a chalcogen {1}
133  DF  .~.~.~.~> Two or more such benzene rings

DEFINITION

Classification: 514/132

Nitro group is directly bonded to a benzene ring which benzene ring is either bonded directly bonded to phosphorus or indirectly bonded to phosphorus through a chalcogen:

(under subclass 131) Subject matter wherein the nitro is directly attached to a benzene ring which is directly bonded to phosphorus, or indirectly bonded to phosphorus through a chalcogen, e.g., [figure] [caption], etc.