Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4603748 | High frequency vibratory systems for earth boring | Andre M. Rossfelder | 1986-08-05 |
| 4553443 | High frequency vibratory systems for earth boring | Andre M. Rossfelder | 1985-11-19 |
| 4381467 | Multiplanar conductor bar for electric machines, especially for turbo-generators | Peter Grunewald, Rudolf von Musil | 1983-04-26 |
| 4238081 | Apparatus for storing filamentary material | Ferdinand Kovic | 1980-12-09 |