Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4363620 | Fire extinguishing device for oil burner | Yutaka Nakanishi, Toshihiko Yamada | 1982-12-14 |
| 4363621 | Oil burner of type of pumping up fuel oil | Motoki Matsumoto, Akinobu Kondo | 1982-12-14 |