Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4337413 | Focusing device with permanent magnets for electron tube and electron tube equipped with such a device | — | 1982-06-29 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4337413 | Focusing device with permanent magnets for electron tube and electron tube equipped with such a device | — | 1982-06-29 |