US PATENT SUBCLASS 420 / 22
.~.~.~.~ Separate addition of plural agents, at least one containing magnesium

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

8  DF  FERROUS (I.E., IRON BASE) {24}
9  DF  .~ 1.7 percent or more carbon containing {2}
13  DF  .~.~ 2.7 percent or more carbon equivalent containing (i.e., cast iron) {7}
18  DF  .~.~.~ Processes of adding magnesium {7}
22.~.~.~.~ Separate addition of plural agents, at least one containing magnesium

DEFINITION

Classification: 420/22

Separate addition of plural agents, at least one containing magnesium:

(under subclass 18) Process wherein plural agents of different compositions are separately added to an alloy or metallic compositions under subclass 13, at least one of the agents containing magnesium.

(1) Note. The additions of plural agents may be separated by physical location or separated by time.