Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4806894 | Apparatus for cancelling leakage magnetic field | — | 1989-02-21 |
SK
Shingo Koto
Overall (1989): #57,522 of 140,708Top 45%
1
Patents 1989