Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4481402 | Multi-position plate welding using modified double-J joint | Michael Melvin Ball | 1984-11-06 |
| 4292496 | Vertical plate welding using double bevel joint | Walter R. Reichelt | 1981-09-29 |