Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5543783 | Glass break detector and a method therefor | Frank B. Clark | 1996-08-06 |
| 5067287 | Display wall assembly | — | 1991-11-26 |
| D261371 | Burglar alarm housing | — | 1981-10-20 |
| D261117 | Door annunciator housing | — | 1981-10-06 |