Issued Patents 1982
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D266996 | Ultrasonic intrusion detector | Kenneth E. Beeson | 1982-11-23 |
| D264318 | Infrared intrusion detection system housing | John K. Guscott | 1982-05-11 |
| D264319 | Infrared intrusion detection system housing | John K. Guscott | 1982-05-11 |