Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4881151 | Electrolytic foil capacitor | Johannus Wilhelmus Weekamp, Benedictus C. H. Fransen | 1989-11-14 |
HP
Hendrik Van Der Ploeg
Overall (1989): #106,002 of 140,708Top 80%
1
Patents 1989