Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5670938 | Fire alarm device | Hiromitsu Ishii, Takashi Ono | 1997-09-23 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5670938 | Fire alarm device | Hiromitsu Ishii, Takashi Ono | 1997-09-23 |