Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4816684 | High-powered negative ion generator in a gaseous medium with a high-strength electric field configuration | — | 1989-03-28 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4816684 | High-powered negative ion generator in a gaseous medium with a high-strength electric field configuration | — | 1989-03-28 |