Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4354058 | Portable field control unit for emergency telephone communications | John W. Harper | 1982-10-12 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4354058 | Portable field control unit for emergency telephone communications | John W. Harper | 1982-10-12 |