Patent information:
| Patent: | Utility 880,121 |
| Patented: | February 25, 1908 |
| Applied: | November 23, 1906 |
| Title: | Electrical Insulator |
| Description: | Knob wiring insulator composed of two or more discs to secure individual wires from each other and the supporting nail or screw. |
| Category: | Knob |
| Assigned to: |
Patentee Information:
| BOLTON, Daniel G. | Camden, NJ |
Class and subclass information:
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 157 | INSULATORS; Divided insulator; Aligned through aperture; |
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 159 | INSULATORS; With insulator-supporting or attaching means; Insulated nail or staple type; |
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 209 | INSULATORS; Sectional, multi-part, composite, or coated; |
| Class: | 411 | EXPANDED, THREADED, DRIVEN, HEADED, TOOL-DEFORMED, OR LOCKED-THREADED FASTENER |
| Subclass: | 546 | WASHER STRUCTURE; Spacer; |
| Class: | 411 | EXPANDED, THREADED, DRIVEN, HEADED, TOOL-DEFORMED, OR LOCKED-THREADED FASTENER |
| Subclass: | 923 | NAIL, SPIKE OR TACK HAVING SPECIFIC HEAD STRUCTURE; |
Known specimens:
| None known |
Drawings:
Page 1 |