US PATENT SUBCLASS 420 / 127
.~ Vanadium, tantalum or niobium containing

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

8  DF  FERROUS (I.E., IRON BASE) {24}
127.~ Vanadium, tantalum or niobium containing

DEFINITION

Classification: 420/127

Vanadium, tantanium or niobium containing:

(under subclass 8) Alloy or metallic composition which additionally contains one or more of vanadium, tantalum or niobium.