Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5438618 | Vocal frequency suppression apparatus and method | Richard C. Gall | 1995-08-01 |
| 4742542 | Telephone switch-hook actuator apparatus | — | 1988-05-03 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5438618 | Vocal frequency suppression apparatus and method | Richard C. Gall | 1995-08-01 |
| 4742542 | Telephone switch-hook actuator apparatus | — | 1988-05-03 |