Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4583747 | Bearing seal for a centrifuge | Ernst Gruebl, Siegfried Pfaff | 1986-04-22 |
| 4446021 | Filter-medium support plate for centrifugal filter | Johannes Feller, Gunther Hultsch, Walter Kisslinger | 1984-05-01 |