US PATENT SUBCLASS 504 / 191
.~.~.~ Hetero ring containing

Current as of: June, 1999
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504 /   HD   PLANT PROTECTING AND REGULATING COMPOSITIONS

116  DF  PLANT GROWTH REGULATING COMPOSITIONS (E.G., HERBICIDES, ETC.) {9}
189  DF  .~ Organic active compound containing {19}
190  DF  .~.~ Heavy metal or aluminum containing {2}
191.~.~.~ Hetero ring containing

DEFINITION

Classification: 504/191

Hetero ring containing:

(under subclass 190) Compositions which contain a hetero ring.