Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885656 | Digital protective relay | Sunao Suzuki | 1989-12-05 |
WK
Wataru Kayamori
Overall (1989): #37,871 of 140,708Top 30%
1
Patents 1989