US PATENT SUBCLASS 420 / 559
.~.~ Antimony, or bismuth containing

Current as of: June, 1999
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420 /   HD   ALLOYS OR METALLIC COMPOSITIONS

557  DF  TIN BASE {3}
558  DF  .~ Lead containing {1}
559.~.~ Antimony, or bismuth containing

DEFINITION

Classification: 420/559

Antimony or bismuth containing:

(under subclass 558) Alloy, or metallic composition which additionally contains at least one of the metals antimony, or bismuth.