US PATENT SUBCLASS 423 / 464
.~.~ Including fluorine

Current as of: June, 1999
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423 /   HD   CHEMISTRY OF INORGANIC COMPOUNDS

462  DF  HALOGEN OR COMPOUND THEREOF {10}
463  DF  .~ Plural metal or metal and ammonium containing {1}
464.~.~ Including fluorine {1}
465  DF  .~.~.~> Including aluminum

DEFINITION

Classification: 423/464

(under subclass 463) Products and processes in which the halogen is fluorine.