US PATENT SUBCLASS 420 / 404
.~.~ Manganese containing

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

402  DF  MAGNESIUM BASE {6}
403  DF  .~ Silver containing {1}
404.~.~ Manganese containing

DEFINITION

Classification: 420/404

Manganese containing:

(under subclass 403) Alloy, or metallic composition which additionally contains manganese.