Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4887801 | Hydraulically damped elastomer-metal bearing | Hubert Pletsch | 1989-12-19 |
| 4861003 | Cup-shaped hydraulic bearing | Hubert Pletsch | 1989-08-29 |
| 4807857 | Soft mounting for insulating body-transmitted acoustic waves | Hubert Pletsch, Otto Weber, Volkamr Keck | 1989-02-28 |