US PATENT SUBCLASS 420 / 470
.~ Tin containing

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

469  DF  COPPER BASE {15}
470.~ Tin containing {5}
471  DF  .~.~> Aluminum containing
472  DF  .~.~> Phosphorus containing
473  DF  .~.~> Iron, manganese or nickel containing
474  DF  .~.~> Lead containing {1}
476  DF  .~.~> Zinc containing

DEFINITION

Classification: 420/470

Tin containing:

(under subclass 469) Alloy, or metallic composition which additionally contains tin.