Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4816950 | Magnetic structure for suppressing magnetic cross talk among rotary transducers on a common rotary disc | Willi Hartmann, Hartmut Willmann, Josef Walter | 1989-03-28 |
RH
Richard Heinz
Overall (1989): #65,951 of 140,708Top 50%
1
Patents 1989