Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5209105 | Method and apparatus for externally and internally testing for leaks in connections between tubular members | Malvern M. Hasha, Brian B. Hasha | 1993-05-11 |
| 4926680 | Method and apparatus for externally and internally testing for leaks in connections between tubular members | Brian B. Hasha, Malvern M. Hasha | 1990-05-22 |