US PATENT SUBCLASS 266 / 168
MEANS FOR TREATING ORES OR FOR EXTRACTING METALS


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

168MEANS FOR TREATING ORES OR FOR EXTRACTING METALS {3}
169  DF  .~> Amalgam-type extraction means
170  DF  .~> By means precipitating metal from solution
171  DF  .~> By means applying heat to work, e.g., furnace {10}


DEFINITION

Classification: 266/168

(under the class definition) Device having means to a) concentrate and enrich the metalliferous material or b) liberate metal from the metalliferous material.

(1) Note. The term "ore" as used herein may include other than naturally occurring sources, e.g., waste photos:graphic solutions.

SEE OR SEARCH CLASS

75, Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures, appropriate subclasses, for processes of treating ore or extracting a metal.