Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4805589 | Fire-extinguishing device for oil burner | Yutaka Nakanishi, Toshihiko Yamada | 1989-02-21 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4805589 | Fire-extinguishing device for oil burner | Yutaka Nakanishi, Toshihiko Yamada | 1989-02-21 |