US PATENT SUBCLASS 420 / 473
.~.~ Iron, manganese or nickel containing

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

469  DF  COPPER BASE {15}
470  DF  .~ Tin containing {5}
473.~.~ Iron, manganese or nickel containing

DEFINITION

Classification: 420/473

Iron, manganese or nickel containing:

(under subclass 470) Alloy, or metallic composition which additionally contains at least one of the metals iron, manganese, or nickel.