Issued Patents 1982
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4361763 | Smoke detectors | John H. Howes, Dennis W. S. Smout | 1982-11-30 |
| 4336454 | Smoke detector ionisation chamber using nickel-63 source | Mark A. Janicki | 1982-06-22 |
| 4336455 | Smoke detectors | — | 1982-06-22 |