US PATENT SUBCLASS 266 / 162
.~ With separate refining zone

Current as of: June, 1999
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266 /   HD   METALLURGICAL APPARATUS

161  DF  MEANS FOR EXTRACTING AND REFINING METAL {1}
162.~ With separate refining zone {2}
163  DF  .~.~> With rotating heating vessel
164  DF  .~.~> With heated vertical extracting means

DEFINITION

Classification: 266/162

(under subclass 161) Device wherein a distinct region or chamber is provided within which the metal purification or treatment occurs.

SEE OR SEARCH THIS CLASS, SUBCLASS:

212, for refining means having a separate metal melting zone.