Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5373926 | Insulated rail electrification system | William R. Heil, Robert Scott Beale | 1994-12-20 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5373926 | Insulated rail electrification system | William R. Heil, Robert Scott Beale | 1994-12-20 |