Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4556162 | Weld backup mechanism for internal pipe welding apparatus | Philip Manning | 1985-12-03 |
| 4213357 | Cutting device for pipe jackets | Steven A. Lively | 1980-07-22 |
| 4205774 | Device for welding tubes to pipe | Stephen Anthony Madden, Steven A. Lively | 1980-06-03 |