Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4944258 | Operator protection for high pressure hose machines | Robert D. Knutson, Bruce M. Boczkiewicz | 1990-07-31 |
| 4322868 | Sewer and catch basin cleaner | — | 1982-04-06 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4944258 | Operator protection for high pressure hose machines | Robert D. Knutson, Bruce M. Boczkiewicz | 1990-07-31 |
| 4322868 | Sewer and catch basin cleaner | — | 1982-04-06 |