Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4801423 | Radiation shielding door assembly | Douglas H. Warren, John C. Matthews, Charles M. Ashman, James W. Finlayson | 1989-01-31 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4801423 | Radiation shielding door assembly | Douglas H. Warren, John C. Matthews, Charles M. Ashman, James W. Finlayson | 1989-01-31 |