Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4825521 | Method of making an external shell of a pump wheel of a hydrodynamic flow unit | Hans Merkle, Otto Worner | 1989-05-02 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4825521 | Method of making an external shell of a pump wheel of a hydrodynamic flow unit | Hans Merkle, Otto Worner | 1989-05-02 |