US PATENT SUBCLASS 423 / 607
.~.~.~ Chromium
Current as of:
June, 1999
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423 /
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CHEMISTRY OF INORGANIC COMPOUNDS
579
DF
OXYGEN OR COMPOUND THEREOF
{4}
592
DF
.~ Metal containing {12}
606
DF
.~.~ Group VIB metal (Cr, Mo, or W) {1}
607
.~.~.~ Chromium
DEFINITION
Classification: 423/607
(under subclass 606) Products or processes wherein the metal is chromium.
SEE OR SEARCH THIS CLASS, SUBCLASS:
595, for compound which contain oxygen chromium and another metal or ammonium.