US PATENT SUBCLASS 420 / 11
.~.~.~ Eight percent or more chromium containing

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

8  DF  FERROUS (I.E., IRON BASE) {24}
9  DF  .~ 1.7 percent or more carbon containing {2}
10  DF  .~.~ Six percent or more total group IV, V or VI transition metals containing {1}
11.~.~.~ Eight percent or more chromium containing {1}
12  DF  .~.~.~.~> Molybdenum, tungsten or vanadium containing

DEFINITION

Classification: 420/11

Eight percent or more chromium containing:

(under subclass 10) Alloy or metallic composition which additionally contains 8 percent or more of chromium.