US PATENT SUBCLASS 148 / 337
.~.~ Three percent or more manganese containing or containing other transition metal in any amount

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}
337.~.~ Three percent or more manganese containing or containing other transition metal in any amount

DEFINITION

Classification: 148/337

Three percent or more manganese containing or containing other transition metal in any amount:

(under subclass 320) Stock material which additionally contains at least one of 3 percent or more manganese or any amount of one or more other transition metals not provided for above.

(1) Note. Transition metals are those elements with atomic numbers 21 through 30, 39 through 48 and 57 through 80.