Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4820938 | Low voltage motion sensor for activating a high voltage load | Charles Hu | 1989-04-11 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4820938 | Low voltage motion sensor for activating a high voltage load | Charles Hu | 1989-04-11 |