(under the class definition) Subject matter including (a) a process involving the use of one or more natural resins or a reaction product thereof or (b) an abrading material or composition including one or more natural resins or a reaction product thereof.
SEE OR SEARCH CLASS
530, Chemistry: Natural Resins or Derivatives; Peptides or Proteins; Lignins or Reaction Products Thereof,
200+, for a natural resin in general or a reaction product thereof.
