Issued Patents All Time
Showing 51–52 of 52 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4448294 | Clutch release bearing having vibration damping material | Manfred Brandenstein, Lothar Walter, Armin Olschewski, Wolfgang Friedrich | 1984-05-15 |
| 4213656 | Drilling bit | Armin Olschewski | 1980-07-22 |