US PATENT SUBCLASS 420 / 477
.~ Zinc containing

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

469  DF  COPPER BASE {15}
477.~ Zinc containing {5}
478  DF  .~.~> Aluminum containing {2}
481  DF  .~.~> Nickel containing
482  DF  .~.~> Manganese containing
483  DF  .~.~> Noble metal containing
484  DF  .~.~> Refractory metal containing

DEFINITION

Classification: 420/477

Zinc containing:

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