Miscellaneous generators not otherwise classifiable.
SEE OR SEARCH CLASS
264, Plastic and Nonmetallic Article Shaping or Treating: Processes,
30, for processes directed to furnace lining formation or repair and the search notes thereto, and subclasses 31+ for forming structural installations in situ.
422, Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing,
