US PATENT SUBCLASS 423 / 316
.~.~ Ternary compound containing hydrogen

Current as of: June, 1999
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423 /   HD   CHEMISTRY OF INORGANIC COMPOUNDS

299  DF  PHOSPHORUS OR COMPOUND THEREOF {5}
304  DF  .~ Oxygen containing {2}
316.~.~ Ternary compound containing hydrogen {1}
317  DF  .~.~.~> Orthophosphoric acid {3}

DEFINITION

Classification: 423/316

(under subclass 304) Products or processes wherein the product contains phosphorus, oxygen and hydrogen, only.