Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4240287 | Sand detection | Harm Mast, Jan W. Kraayeveld, Gerrit J. Wunnink | 1980-12-23 |
PV
Peter B. Vriezen
Overall (All Time): #4,126,074 of 4,157,543Top 100%
1
Patents All Time