Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4803316 | Push button switch using dome spring and switch element thereof | Kazutoshi Hayashi, Toshiaki Tanaka, Kazushi Ishida | 1989-02-07 |
HN
Hideo Nabetani
Overall (1989): #104,660 of 140,708Top 75%
1
Patents 1989