US PATENT SUBCLASS 252 / 390
.~.~.~ Amine, amide, azo, or nitrogen-base radical containing

Current as of: June, 1999
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252 /   HD   COMPOSITIONS

380  DF  PRESERVATIVE AGENTS {3}
387  DF  .~ Anti-corrosion {1}
388  DF  .~.~ Organic compound containing {6}
390.~.~.~ Amine, amide, azo, or nitrogen-base radical containing {2}
391  DF  .~.~.~.~> Sulphur organic compound containing
392  DF  .~.~.~.~> Oxygen organic compound containing

DEFINITION

Classification: 252/390

(under subclass 388) Compositions which contain organic compounds which contain amine, amide, azo, or nitrogen-base radicals.