Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4861950 | Multiple switch device having waterproof structure | Shinji Yanai | 1989-08-29 |
| 4843192 | Push-button switch device having individual/nterlocking action | Soetsu Kamada | 1989-06-27 |
| 4843195 | Switch having dust-proof cover | Hiroyuki Sato | 1989-06-27 |