US PATENT SUBCLASS 568 / 14
.~.~.~ Sulfur or oxygen bonded directly to phosphorus

Current as of: June, 1999
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568 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {4}
8  DF  .~ PHOSPHORUS CONTAINING {5}
13  DF  .~.~ Sulfur or oxygen containing {1}
14.~.~.~ Sulfur or oxygen bonded directly to phosphorus {1}
15  DF  .~.~.~.~> And sulfur or oxygen bonded indirectly to phosphorus

DEFINITION

Classification: 568/14

(under subclass 13) Compounds wherein sulfur or oxygen is bonded directly to phosphorus.