Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4806823 | Method of manufacturing an electron beam tube and electron beam tube thus manufactured | Johannes M. A. A. Compen | 1989-02-21 |
WK
Wilhelmus M. P. Van Kemenade
Overall (1989): #42,941 of 140,708Top 35%
1
Patents 1989