Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4240287 | Sand detection | Harm Mast, Peter B. Vriezen, Gerrit J. Wunnink | 1980-12-23 |
JK
Jan W. Kraayeveld
Overall (All Time): #4,126,073 of 4,157,543Top 100%
1
Patents All Time