Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4713108 | NPK complex fertilizer | Olav Kjohl, Torstein Obrestad | 1987-12-15 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4713108 | NPK complex fertilizer | Olav Kjohl, Torstein Obrestad | 1987-12-15 |