US PATENT SUBCLASS 420 / 539
.~.~ Silver 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

528  DF  ALUMINUM BASE {7}
529  DF  .~ Copper containing {6}
539.~.~ Silver containing


DEFINITION

Classification: 420/539

Silver containing:

(under subclass 529) Alloy, or metallic composition which additionally contains silver.