.~> 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.