US PATENT SUBCLASS 148 / 430
.~ Noble metal base

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

Internet Version by PATENTEC © 1999      Terms of Use


148 /   HD   METAL TREATMENT

400  DF  STOCK {20}
430.~ Noble metal base {1}
431  DF  .~.~> Silver base containing in situ formed oxides

DEFINITION

Classification: 148/430

Noble metal base:

(under subclass 400) Stock material which contains over 50 percent by weight of a single metal selected from ruthenium, rhodium, paladium, osmium, iridium, platinum, gold, or silver.