Patent information:
| Patent: | Utility 937,736 |
| Patented: | October 19, 1909 |
| Applied: | November 21, 1908 |
| Title: | Insulator |
| Description: | Pin with spring to fit into threads |
| Category: | Pin |
| Assigned to: |
Patentee Information:
| DUMBOLTON, Perry S. | Burke, ID |
| FRANZ, Frank | Burke, ID |
Class and subclass information:
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 203 | INSULATORS; With terminal elements; Pin type; Screw or bayonet type; Strand thread; |
| Class: | 138 | PIPES AND TUBULAR CONDUITS |
| Subclass: | 96T |
Known specimens:
| None known |
Drawings:
Page 1 |