US PATENT SUBCLASS 420 / 120
.~ 1.5 percent or more manganese containing, but less than 8 percent


Current as of: June, 1999
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420 /   HD   ALLOYS OR METALLIC COMPOSITIONS

8  DF  FERROUS (I.E., IRON BASE) {24}
120.~ 1.5 percent or more manganese containing, but less than 8 percent


DEFINITION

Classification: 420/120

1.5 percent or more manganese containing, but less than 8 percent:

(under subclass 8) Alloy or metallic composition which additionally contains 1.5 percent or more manganese.

(1) Note. Due to schedule superiority, alloys containing 8 percent or more manganese are classified above in subclasses 72+. Patents classified in subclasses 72+ above are not cross- referenced to this subclass unless there is a positive disclosure of an alloy containing less than 8 percent manganese.