US PATENT SUBCLASS 148 / 324
.~.~.~ Six percent or more group IV, V or VI transition metal containing

Current as of: June, 1999
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148 /   HD   METAL TREATMENT

400  DF  STOCK {20}
320  DF  .~ Ferrous (i.e., iron base) {10}
321  DF  .~.~ 1.7 percent or more carbon containing (e.g., cast iron) {3}
324.~.~.~ Six percent or more group IV, V or VI transition metal containing

DEFINITION

Classification: 148/324

Six percent or more group IV, V or IV transition metal containing:

(under subclass 321) Stock material which additionally contains one or more of the elements titanium, zirconium, hafnium, vanadium, niobium, tantalum, chromium, molybdenum or tungsten in a total amount of 6 percent or more.