Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4834879 | Two-stage waste water treatment system for single family residences and the like | William A. Stegall, Sr. | 1989-05-30 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4834879 | Two-stage waste water treatment system for single family residences and the like | William A. Stegall, Sr. | 1989-05-30 |