Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4884002 | Rotary or linear electric motor whose armature is driven by means of ultrasonic vibrations | Roland K. Eusemann, Heinrich A. Oepen | 1989-11-28 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4884002 | Rotary or linear electric motor whose armature is driven by means of ultrasonic vibrations | Roland K. Eusemann, Heinrich A. Oepen | 1989-11-28 |