Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4843330 | Electron beam contactless testing system with grid bias switching | Fritz J. Hohn, Hans C. Pfeiffer | 1989-06-27 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4843330 | Electron beam contactless testing system with grid bias switching | Fritz J. Hohn, Hans C. Pfeiffer | 1989-06-27 |