Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4848124 | Making seamless pipes, over 200 mm in diameter | Horst Biller, Wilhelm Nickel, Rolf Kuemmerling | 1989-07-18 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4848124 | Making seamless pipes, over 200 mm in diameter | Horst Biller, Wilhelm Nickel, Rolf Kuemmerling | 1989-07-18 |