Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4866694 | Read/write head for optical disks | — | 1989-09-12 |
HK
Hans-Erdmann Korth
Overall (1989): #108,331 of 140,708Top 80%
1
Patents 1989