US PATENT SUBCLASS 423 / 606
.~.~ Group VIB metal (Cr, Mo, or W)

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}
606.~.~ Group VIB metal (Cr, Mo, or W) {1}
607  DF  .~.~.~> Chromium

DEFINITION

Classification: 423/606

(under subclass 592) Products or processes wherein the metal is chromium, molybdenum or tungsten (Group VIB).