Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5604423 | Tap changing system having discrete cycle modulation and fault rotation for coupling to an inductive device | Robert C. Degeneff, Friedrich K. Schaeffer, Robert H. Frazer, David Allan Torrey | 1997-02-18 |