Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4804401 | Method of producing a phosphorus fertilizer soil conditioner | by Anna-Maija Wahlberg, legal representative | 1989-02-14 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4804401 | Method of producing a phosphorus fertilizer soil conditioner | by Anna-Maija Wahlberg, legal representative | 1989-02-14 |