Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4390367 | High-alloyed steel being resistive to corrosion by natural gas | Norbert Niehaus, Rolf Popperling | 1983-06-28 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4390367 | High-alloyed steel being resistive to corrosion by natural gas | Norbert Niehaus, Rolf Popperling | 1983-06-28 |