US PATENT SUBCLASS 423 / 594
.~.~.~ Iron, cobalt, or nickel (e.g., ferrite, etc.)

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

579  DF  OXYGEN OR COMPOUND THEREOF {4}
592  DF  .~ Metal containing {12}
593  DF  .~.~ Plural metals or metal and ammonium {6}
594.~.~.~ Iron, cobalt, or nickel (e.g., ferrite, etc.)

DEFINITION

Classification: 423/594

(under subclass 582) Products or processes which comprise iron, cobalt or nickel.

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127, for processes of treating mixtures to obtain aluminum hydroxide or hydrate of aluminum, including the steps of (1) forming an insoluble substance in a liquid and, (2) chemically forming an hydroxide or a hydrate.