Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4829660 | System for removing a plug from a heat exchanger tube | John B. Gunter, William Woolfolk, Frank Sadofsky, Lawrence A. Nelson, George D. Fulmer +2 more | 1989-05-16 |
| 4823846 | Tube plug tip restrainer apparatus | Frank Sadofsky | 1989-04-25 |
| 4804291 | Double gimbal camlock installation assembly | — | 1989-02-14 |