(under the class definition) Subject matter including impregnating or coating a tool already embodying an abrasive and other material, or a composition for such use, wherein the coating or impregnating composition may contain additional abrasive material.
SEE OR SEARCH CLASS
427, Coating Processes, for a process of coating in general.
428, Stock Material or Miscellaneous Articles,
568, for metallic stock having a consolidated particulate phase impregnated with a continuous phase of a different metal.
