Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5693943 | Passive infrared intrusion detector | Nahum Tchernihovski, Boris Zhevelev, Mark Moldavski | 1997-12-02 |
| 5661471 | Emergency alert system for a protected region employing RF and non-RF signalling | — | 1997-08-26 |