US PATENT SUBCLASS 420 / 445
.~.~ Aluminum containing

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

441  DF  NICKEL BASE {6}
442  DF  .~ Chromium containing {5}
445.~.~ Aluminum containing {1}
446  DF  .~.~.~> Titanium containing {3}

DEFINITION

Classification: 420/445

Aluminum containing:

(under subclass 442) Alloy, or metallic composition which additionally contains aluminum.