Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880948 | Contactor device for circuit breaker | Makoto Yamazaki, Hiroshi Kinota | 1989-11-14 |
| 4864261 | Contactor device fo circuit breaker | — | 1989-09-05 |
| 4853662 | Contactor apparatus | — | 1989-08-01 |