US PATENT SUBCLASS 570 / 129
.~.~.~.~.~ Plural carbocyclic rings containing

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

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {1}
101  DF  .~ HALOGEN CONTAINING {21}
123  DF  .~.~ Fluorine containing {21}
124  DF  .~.~.~ Product {7}
127  DF  .~.~.~.~ Benzene ring containing {2}
129.~.~.~.~.~ Plural carbocyclic rings containing

DEFINITION

Classification: 570/129

Plural carbocyclic rings containing:

(under subclass 127) Compound which contains at least two carbocyclic rings, at least one of which is a benzene ring.