Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5221880 | Underground trolley vehicle with brushless D.C. Motor | Jess Bartholow | 1993-06-22 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5221880 | Underground trolley vehicle with brushless D.C. Motor | Jess Bartholow | 1993-06-22 |