US PATENT SUBCLASS 420 / 53
.~.~.~.~ Group IV or V transition metal containing

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}
43  DF  .~.~ Eight percent or more nickel containing {6}
52  DF  .~.~.~ Molybdenum containing {1}
53.~.~.~.~ Group IV or V transition metal containing

DEFINITION

Classification: 420/53

Group IV or V transition metal containing:

(under subclass 52) Alloy or metallic composition which additionally contains one or more of titanium, zirconium, hafnium, vanadium, niobium or tantaium.