Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5341539 | Apparatus for cleaning waste collection system | Henry B. Polston | 1994-08-30 |
| 5336333 | Method for cleaning waste collection systems | Henry B. Polston | 1994-08-09 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5341539 | Apparatus for cleaning waste collection system | Henry B. Polston | 1994-08-30 |
| 5336333 | Method for cleaning waste collection systems | Henry B. Polston | 1994-08-09 |