Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4859344 | Method for underground support and removal of hazardous ions in ground waters | Lloyd Byron Spangle | 1989-08-22 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4859344 | Method for underground support and removal of hazardous ions in ground waters | Lloyd Byron Spangle | 1989-08-22 |