US PATENT SUBCLASS 420 / 568
.~.~ Tin containing

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

563  DF  LEAD BASE {8}
567  DF  .~ Arsenic containing {1}
568.~.~ Tin containing {1}
569  DF  .~.~.~> Antimony containing

DEFINITION

Classification: 420/568

Tin containing:

(under subclass 567) Alloy, or metallic composition which additionally contains tin.