US PATENT SUBCLASS 420 / 407
.~ Aluminum containing

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

402  DF  MAGNESIUM BASE {6}
407.~ Aluminum containing {2}
408  DF  .~.~> Zinc containing {1}
410  DF  .~.~> Manganese containing

DEFINITION

Classification: 420/407

Aluminum containing:

(under subclass 402) Alloy, or metallic composition which additionally contains aluminum.