US PATENT SUBCLASS 420 / 540
.~ Zinc containing

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

528  DF  ALUMINUM BASE {7}
540.~ Zinc containing {1}
541  DF  .~.~> Magnesium containing

DEFINITION

Classification: 420/540

Zinc containing:

(under subclass 528) Alloy, or metallic composition which additionally contains zinc.