Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5617815 | Regulating valve | Karl-Heinz Spies, Wolfgang Krause | 1997-04-08 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5617815 | Regulating valve | Karl-Heinz Spies, Wolfgang Krause | 1997-04-08 |