Issued Patents 1982
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4364031 | Ionization smoke detector with increased operational reliability | Andreas Scheidweiler | 1982-12-14 |
| 4356478 | Employing a shape memory alloy in a fire alarm temperature sensitive element | Jurg Muggli | 1982-10-26 |
| 4343884 | Diazotype developing process and acidic developer with amine base salt | Henry Mustacchi | 1982-08-10 |