Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4644219 | Beam generating system for electron tubes, particularly travelling wave tubes | — | 1987-02-17 |
| 4292566 | Traveling wave tube with a helical delay line | Hinrich Heynisch, Heinz Barth | 1981-09-29 |