Patent information:
| Patent: | Utility 328,728 |
| Patented: | October 20, 1885 |
| Applied: | July 26, 1884 |
| Title: | Insulator |
| Description: | Slotted tubular insulator for crossovers |
| Category: | Slotted |
| Assigned to: |
Patentee Information:
| SMITH, Leonard O. | Philadelphia, PA |
Class and subclass information:
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 147 | INSULATORS; Mid-line spacers; Cross-over; |
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 175 | INSULATORS; With conductor holding means; Insulator structure; Self-retaining; |
Known specimens:
| None known |
Drawings:
Page 1 |