Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4881060 | Fire alarm system | Joseph Keen | 1989-11-14 |
| 4670886 | Receiver/driver/repeater interface | William Newcombe, Daniel G. Prysby, Michael E. Sanderson | 1987-06-02 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4881060 | Fire alarm system | Joseph Keen | 1989-11-14 |
| 4670886 | Receiver/driver/repeater interface | William Newcombe, Daniel G. Prysby, Michael E. Sanderson | 1987-06-02 |