Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4892312 | Operating device for TV game machine | Hisayuki Yamaguchi | 1990-01-09 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4892312 | Operating device for TV game machine | Hisayuki Yamaguchi | 1990-01-09 |