Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5302837 | Photoelectric smoke detector with expanded visual field | Hiroshi Sawa, Naoki Kosugi | 1994-04-12 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5302837 | Photoelectric smoke detector with expanded visual field | Hiroshi Sawa, Naoki Kosugi | 1994-04-12 |