Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4864118 | Optical scanning unit with tracking error detection | Willem G. Opheij, Gerard E. Van Rosmalen | 1989-09-05 |
GE
Gerard Van Engelen
Overall (1989): #111,048 of 140,708Top 80%
1
Patents 1989