| Patent information: 
  | Patent: | Utility 426,203 |  | Patented: | April 22, 1890 |  | Applied: | January 17, 1890 |  | Title: | Insulator |  | Description: | Wood tree insulator with line wire running through the center of a rod of wood |  | Category: | Wood |  | Assigned to: | Thomas L. Coles |  Patentee Information: Class and subclass information: 
  | Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |  | Subclass: | 156 | INSULATORS;  Divided insulator; |  Known specimens: | Drawings: 
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