Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6237835 | Method and apparatus for backing up a friction stir weld joint | Edward Litwinski | 2001-05-29 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6237835 | Method and apparatus for backing up a friction stir weld joint | Edward Litwinski | 2001-05-29 |