Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4870281 | Gas-filled X-ray detector | Lourens Valkonet, Frans G. Vreugdenhil | 1989-09-26 |
JB
Johannes Van Der Borst
Overall (1989): #92,420 of 140,708Top 70%
1
Patents 1989