Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4861462 | Method of forming sieve unit for screening machine | Christian Neukam | 1989-08-29 |
| 4825981 | Axially split brake disk | Alfred Otto, Henryk Piontke | 1989-05-02 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4861462 | Method of forming sieve unit for screening machine | Christian Neukam | 1989-08-29 |
| 4825981 | Axially split brake disk | Alfred Otto, Henryk Piontke | 1989-05-02 |