Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4864136 | Passive infrared detection system with three-element, single-channel, pyroelectric detector | — | 1989-09-05 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4864136 | Passive infrared detection system with three-element, single-channel, pyroelectric detector | — | 1989-09-05 |