Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5078873 | Filter cleaning apparatus | Brent C. Black, Steven G. Coombs, John Thorum | 1992-01-07 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5078873 | Filter cleaning apparatus | Brent C. Black, Steven G. Coombs, John Thorum | 1992-01-07 |