| Patent information: 
  | Patent: | Utility 146,996 |  | Patented: | February 3, 1874 |  | Applied: | August 5, 1873 |  | Title: | Improvement in Telegraph Insulators |  | Description: | Cylinder split insulator with groove for wire and held by bracket |  | Category: | Cylinder |  | Assigned to: |  |  Patentee Information: Class and subclass information: 
  | Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |  | Subclass: | 156 | INSULATORS;  Divided insulator; |  | Class: | 24 | BUCKLES, BUTTONS, CLASPS, ETC. |  | Subclass: | 136R | CORD AND ROPE HOLDERS;  Sliding part or wedge; |  Known specimens: | Drawings: 
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