Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4893852 | Dual sensor electromagnetic door lock system | Daniel J. Harris | 1990-01-16 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4893852 | Dual sensor electromagnetic door lock system | Daniel J. Harris | 1990-01-16 |