Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4811391 | Telephone set comprising a line voltage stabilizer having a DC supply point | Peter J. M. Sijbers | 1989-03-07 |
FD
Frederik Van Dongen
Overall (1989): #113,865 of 140,708Top 85%
1
Patents 1989