US PATENT SUBCLASS 29 / 15
PUDDLERS' BALLS MAKING
Current as of: June, 1999
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DEFINITION
Classification: 29/15
PUDDLERS' BALLS MAKING:
(under the class definition) Process or apparatus for manufacturing a solid, generally spherical member intended to be used in molten metal, e.g., to assist in refining of metal.
SEE OR SEARCH CLASS
75, Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, etc., for a process of treating metal in the molten state.
266, Metallurgical Apparatus, especially
227+, for means for separating metal in a molten mass from undesired material.