US PATENT SUBCLASS 252 / 405
.~.~.~ Nitrogen organic compound containing

Current as of: June, 1999
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252 /   HD   COMPOSITIONS

380  DF  PRESERVATIVE AGENTS {3}
397  DF  .~ Anti-oxidants or chemical change inhibitants {2}
399  DF  .~.~ Organic compound containing {8}
405.~.~.~ Nitrogen organic compound containing

DEFINITION

Classification: 252/405

(under subclass 399) Compositions which contain organic compounds which contain nitrogen.