US PATENT SUBCLASS 252 / 394
.~.~.~ Nitrogen organic compound 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}
394.~.~.~ Nitrogen organic compound containing

DEFINITION

Classification: 252/394

(under subclass 388) Compositions which contain organic compounds which contain nitrogen.