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


Current as of: June, 1999
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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.