Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4395606 | Disconnect switch with line-side contact module | Robert E. Borchardt, Grant W. Nelson | 1983-07-26 |
| 4251700 | Disconnect switch | Robert E. Borchardt, Frank A. Grabarczyk | 1981-02-17 |