Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5695316 | Friction vacuum pump with pump sections of different designs | Heinrich Engländer, Friedrich von Schulz-Hausmann, Hinrich Henning | 1997-12-09 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5695316 | Friction vacuum pump with pump sections of different designs | Heinrich Engländer, Friedrich von Schulz-Hausmann, Hinrich Henning | 1997-12-09 |