Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4881151 | Electrolytic foil capacitor | Johannus Wilhelmus Weekamp, Hendrik Van Der Ploeg | 1989-11-14 |
BF
Benedictus C. H. Fransen
Overall (1989): #129,740 of 140,708Top 95%
1
Patents 1989