| 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: | 152G | INSULATORS;  Through wall or plate;  Bushing type;  Grommets or tubes; | 
  | Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS | 
  | Subclass: | 153R | INSULATORS;  Through wall or plate;  Bushing type;  Opposed wall engaging means; | 
  | Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS | 
  | Subclass: | 170 | INSULATORS;  With conductor holding means;  Fitting or terminal type;  Hooks; | 
  | Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS | 
  | Subclass: | 211 | INSULATORS;  With moisture or dirt removing or shedding; |