Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4331281 | Process and apparatus for production of welded tubes | Wolfram Klebl, Gerhard Ziemek | 1982-05-25 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4331281 | Process and apparatus for production of welded tubes | Wolfram Klebl, Gerhard Ziemek | 1982-05-25 |