Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4860990 | Diaphragm type water inlet valve | Sooichi Fukuzawa, Yoshio Ohwa | 1989-08-29 |
| 4819261 | Public telephone set | Kazuo Asada, Shigehiro Eda | 1989-04-04 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4860990 | Diaphragm type water inlet valve | Sooichi Fukuzawa, Yoshio Ohwa | 1989-08-29 |
| 4819261 | Public telephone set | Kazuo Asada, Shigehiro Eda | 1989-04-04 |