Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5013384 | Vacuum system | Peter Janssen, Jan Zwier, Harm Lotterman | 1991-05-07 |
WM
Willem F. Mellink
Overall (All Time): #3,875,804 of 4,157,543Top 95%
1
Patents All Time