Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5343653 | Device for transcuticular application of active substance to plants | Hanshelmut Itzel, Bernd Zierenberg, Christo Drandarevski | 1994-09-06 |
| 5201925 | Device for transcuticular application of active substances to plants | Hanshelmut Itzel, Bernd Zierenberg, Christo Drandarevski | 1993-04-13 |