Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4873933 | Float-free arrangement for marine radio distress beacons | David A. Smith | 1989-10-17 |
| 4857679 | Alarm system | David M. Smith | 1989-08-15 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4873933 | Float-free arrangement for marine radio distress beacons | David A. Smith | 1989-10-17 |
| 4857679 | Alarm system | David M. Smith | 1989-08-15 |