Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4863625 | Titanium-containing and cobalt-containing manganese-zinc ferrite core and method of manufacturing same | Theodorus G. W. Stijntjes | 1989-09-05 |
JR
Johannus J. Roelofsma
Overall (1989): #34,861 of 140,708Top 25%
1
Patents 1989