US PATENT SUBCLASS 148 / 30
.~.~ Carbonaceous


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

22  DF  COMPOSITIONS {2}
27  DF  .~ Heat treating {2}
30.~.~ Carbonaceous


DEFINITION

Classification: 148/30

The composition contains available carbon, which it gives up to the heated metal.

SEE OR SEARCH THIS CLASS, SUBCLASS:

19, for processes of heat treating ferrous alloys for heat treating while contacting the metal with a carbonaceous solid.