US PATENT SUBCLASS 420 / 503
.~.~ Other noble metal containing

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


420 /   HD   ALLOYS OR METALLIC COMPOSITIONS

501  DF  SILVER BASE {3}
502  DF  .~ Copper containing {2}
503.~.~ Other noble metal containing

DEFINITION

Classification: 420/503

Other noble metal containing:

(under subclass 502) Alloy, or metallic composition which additionally contains at least one of the metals ruthenium, rhodium, palladium, osmium, iridium, platinum, or gold.