US PATENT SUBCLASS 423 / 411
.~.~.~ Titanium or zirconium containing

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

351  DF  NITROGEN OR COMPOUND THEREOF (EXCEPT AMMONIUM SALT OF NON-NITROGEN ACID) {5}
406  DF  .~ Binary compound {2}
409  DF  .~.~ Metal or ammonium containing {3}
411.~.~.~ Titanium or zirconium containing

DEFINITION

Classification: 423/411

(under subclass 409) Products or processes wherein the metal is titanium or zirconium.