Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4513788 | Flange system for pipeline plugging | John W. Wegner | 1985-04-30 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4513788 | Flange system for pipeline plugging | John W. Wegner | 1985-04-30 |