Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4855636 | Micromachined cold cathode vacuum tube device and method of making | Heinz H. Busta | 1989-08-08 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4855636 | Micromachined cold cathode vacuum tube device and method of making | Heinz H. Busta | 1989-08-08 |