US PATENT SUBCLASS 420 / 499
.~ Phosphorus, arsenic, antimony, or bismuth containing

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

469  DF  COPPER BASE {15}
499.~ Phosphorus, arsenic, antimony, or bismuth containing

DEFINITION

Classification: 420/499

Phosphorus, arsenic, antimony or bismuth containing:

(under subclass 469) Alloy, or metallic composition which additionally contains at least one of the elements phosphorus, arsenic, antimony, or bismuth.