Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4875827 | Fluid pump and method for making the same | Alois Gschwender, Bernhard Schleifer | 1989-10-24 |
| 4854834 | Pump with improved seal | Alois Gschwender, Andreas Szeteli | 1989-08-08 |