US PATENT SUBCLASS 420 / 517
.~.~.~ Tin containing

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

513  DF  ZINC BASE {4}
514  DF  .~ Aluminum containing {3}
515  DF  .~.~ Copper containing {3}
517.~.~.~ Tin containing

DEFINITION

Classification: 420/517

Tin containing:

(under subclass 515) Alloy, or metallic composition which additionally contains tin.