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 | Heinrich A. Oepen, Anton Hammers | 1989-11-28 |
RE
Roland K. Eusemann
Overall (1989): #63,664 of 140,708Top 50%
1
Patents 1989