Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4870507 | Video tape recorder system | Jung-ku Ahn, Jong-Kwan Paik, Hee-Chul Gong | 1989-09-26 |
JK
Jong-Ahn Kim
Overall (1989): #94,621 of 140,708Top 70%
1
Patents 1989