Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4870861 | Liquid level indicator | Yoshitake Sato | 1989-10-03 |
| 4825695 | Liquid level indicator | — | 1989-05-02 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4870861 | Liquid level indicator | Yoshitake Sato | 1989-10-03 |
| 4825695 | Liquid level indicator | — | 1989-05-02 |