Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4890034 | Thyratrons | Robert E. Baker, Leonard R. Cullum | 1989-12-26 |
| 4805180 | Discharge tube apparatus | Arthur Maitland, Christopher NEALE | 1989-02-14 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4890034 | Thyratrons | Robert E. Baker, Leonard R. Cullum | 1989-12-26 |
| 4805180 | Discharge tube apparatus | Arthur Maitland, Christopher NEALE | 1989-02-14 |