Issued Patents 2018
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9965935 | Alarm device system with simultaneous AC/DC power source | Preston Palmer, Larkin Palmer | 2018-05-08 |
| 9966791 | Central battery interconnected smoke detector system with single wire AC and DC pass-through relay | Preston Palmer, Larkin Palmer | 2018-05-08 |