US PATENT SUBCLASS 148 / 325
.~.~ Nine percent or more chromium 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}
325.~.~ Nine percent or more chromium containing {2}
326  DF  .~.~.~> Age or precipitation hardened or strengthened
327  DF  .~.~.~> Eight percent or more total content of nickel and/or manganese containing

DEFINITION

Classification: 148/325

Nine percent or more chromium containing:

(under subclass 320) Stock material which additionally contains 9 percent of more chromium.

(1) Note. This subclass contains most so called stainless steels. The recitation that a stock material is "stainless steel" will cause it to be placed in this or indented subclasses unless it is clear that the material does not contain 9 percent or more chromium.