Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4804942 | Verifying automatic line integrity diagnostic (V.A.L.I.D.) apparatus and methods for intrusion detection systems | — | 1989-02-14 |
| 4667183 | Keyboard hold-down functions for a multi-zone intrusion detection system | — | 1987-05-19 |
| 4498075 | Fault indicator apparatus for a multi-zone intrusion system | — | 1985-02-05 |