Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE32798 | Method of material distribution and apparatus for use in the method | Jan Harm Van Der Wal | 1988-12-13 |
| 4563858 | Method of material distribution and apparatus for use in the method | Jan Harm Van Der Wal | 1986-01-14 |