| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS | 
  | Subclass: | 182 | INSULATORS;  With terminal elements;  Plural;  Cap and pin; | 
  | Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS | 
  | Subclass: | 163R | INSULATORS;  With insulator-supporting or attaching means;  Support and/or insulator embracing or clamping; | 
  | Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS | 
  | Subclass: | 189 | INSULATORS;  With terminal elements;  Cap type;  Plastic material adhered; | 
  | Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS | 
  | Subclass: | 196 | INSULATORS;  With terminal elements;  Pin type;  Plastic material adhered; | 
  | Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS | 
  | Subclass: | 210 | INSULATORS;  Sectional, multi-part, composite, or coated;  Pin socket type; | 
  | Class: | 264 | PLASTIC AND NONMETALLIC ARTICLE SHAPING OR TREATING: PROCESSES | 
  | Subclass: | DIG54 | Processes in making insulators; |