Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D382825 | Detector housing | — | 1997-08-26 |
| 5633501 | Combination photoelectric and ionization smoke detector | Derrick J. Hesser | 1997-05-27 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D382825 | Detector housing | — | 1997-08-26 |
| 5633501 | Combination photoelectric and ionization smoke detector | Derrick J. Hesser | 1997-05-27 |