US PATENT SUBCLASS 420 / 561
.~.~ Antimony, or bismuth 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

557  DF  TIN BASE {3}
560  DF  .~ Copper containing {1}
561.~.~ Antimony, or bismuth containing

DEFINITION

Classification: 420/561

Antimony or bismuth containing:

(under subclass 560) Alloy, or metallic composition which additionally contains at least one of the metals antimony or bismuth.