Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5283534 | High frequency amplifying apparatus with a collector which has a periodic amplitude variable longitudinal magnetic field therein | Heinz Bohlen | 1994-02-01 |
| 5281923 | Amplifying arrangements which modulate an electron beam | — | 1994-01-25 |