Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5317230 | Amplifier valve with grid having rods of variable width | Michel-Pierre Tardy | 1994-05-31 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5317230 | Amplifier valve with grid having rods of variable width | Michel-Pierre Tardy | 1994-05-31 |