Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4870533 | Transistor protection circuit | — | 1989-09-26 |
JB
Johannes P. M. Bahlmann
Overall (1989): #96,708 of 140,708Top 70%
1
Patents 1989