Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4859327 | Means for water and wastewater treatment | Christopher E. Cox | 1989-08-22 |
| 4839050 | Skimmer system | Harold J. Beard | 1989-06-13 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4859327 | Means for water and wastewater treatment | Christopher E. Cox | 1989-08-22 |
| 4839050 | Skimmer system | Harold J. Beard | 1989-06-13 |