Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4878149 | Device for generating ions in gas streams | Hans-Henrich Stiehl | 1989-10-31 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4878149 | Device for generating ions in gas streams | Hans-Henrich Stiehl | 1989-10-31 |