US PATENT SUBCLASS 420 / 444
.~.~ Noble metal containing

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

441  DF  NICKEL BASE {6}
442  DF  .~ Chromium containing {5}
444.~.~ Noble metal containing

DEFINITION

Classification: 420/444

Noble metal containing:

(under subclass 442) Alloy, or metallic composition which additionally contains at least one of the metals ruthenium, rhodium, palladium, osmium, iridium, platinum, gold, or silver.