US PATENT SUBCLASS 252 / 578
.~ O-containing

Current as of: June, 1999
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252 /   HD   COMPOSITIONS

570  DF  FLUENT DIELECTRIC {7}
578.~ O-containing {2}
579  DF  .~.~> Carboxylic acid ester
580  DF  .~.~> Halogen-containing

DEFINITION

Classification: 252/578

O-containing:

(under subclass 570) Subject matter in which a component of the composition contains oxygen.