US PATENT SUBCLASS 420 / 63
.~.~.~ Molybdenum or tungsten conaining

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

8  DF  FERROUS (I.E., IRON BASE) {24}
34  DF  .~ Nine percent or more chromium containing {14}
62  DF  .~.~ Over 0.1 percent aluminum containing {1}
63.~.~.~ Molybdenum or tungsten conaining

DEFINITION

Classification: 420/63

Molybdenum or tungsten containing:

(under subclass 62) Alloy or metallic compositions which additionally contains more of molybdenum or tungsten.