Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4820955 | Traveling wave tube comprising periodic permanent magnetic focusing system with glass/epoxy retaining means | Hermann Turnwald | 1989-04-11 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4820955 | Traveling wave tube comprising periodic permanent magnetic focusing system with glass/epoxy retaining means | Hermann Turnwald | 1989-04-11 |