US PATENT SUBCLASS 420 / 497
.~ Noble metal containing

Current as of: June, 1999
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420 /   HD   ALLOYS OR METALLIC COMPOSITIONS

469  DF  COPPER BASE {15}
497.~ Noble metal containing

DEFINITION

Classification: 420/497

Noble metal containing:

(under subclass 469) Alloy, or metallic composition additionally containing at least one of the metals ruthenium, rhodium, palladium, osmium, iridium, platinum, silver, or gold.