US PATENT SUBCLASS 420 / 54
.~.~.~ Group IV or V transition metal containing

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


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}
54.~.~.~ Group IV or V transition metal containing

DEFINITION

Classification: 420/54

Group IV or V transition metal containing:

(under subclass 43) Alloy or metallic composition which additionally contains one or more titanium, zirconium, hafnium, vanadium, niobium or tantalum.