Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4966177 | Ultrasonic tube cleaning system | Clarence D. John, Jr., Joseph G. Cigich | 1990-10-30 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4966177 | Ultrasonic tube cleaning system | Clarence D. John, Jr., Joseph G. Cigich | 1990-10-30 |