Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4812291 | Method of fumigating agricultural products using hydrogen phosphide | Wolfgang Friemel, Volker Barth, Reiner Ehret | 1989-03-14 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4812291 | Method of fumigating agricultural products using hydrogen phosphide | Wolfgang Friemel, Volker Barth, Reiner Ehret | 1989-03-14 |