US PATENT SUBCLASS 266 / 161
MEANS FOR EXTRACTING AND REFINING METAL


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

161MEANS FOR EXTRACTING AND REFINING METAL {1}
162  DF  .~> With separate refining zone {2}


DEFINITION

Classification: 266/161

(under the class definition) Device comprising a means to treat an ore or other metal bearing material to remove a metal therefrom combined with additional means to purify or otherwise treat the removed metal.