Issued Patents 1997
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5673027 | Smoke detector, adjustment apparatus and test apparatus for such a smoke detector | — | 1997-09-30 |
| 5671159 | Fire detecting apparatus | — | 1997-09-23 |
| 5629671 | Photoelectric type fire detector and adjustment unit therefor | — | 1997-05-13 |
| 5627514 | Fire detector and fire receiver | — | 1997-05-06 |
| 5594417 | Fire alarm system | — | 1997-01-14 |