Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4805079 | Switched voltage converter | — | 1989-02-14 |
MB
Marinus C. W. Van Buul
Overall (1989): #78,240 of 140,708Top 60%
1
Patents 1989