Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4538033 | Data bridge with gating and/or testing | Charles E. Conklin | 1985-08-27 |
| 4403119 | DTMF Activated remote telephone line switching and testing | Charles E. Conklin | 1983-09-06 |
| 4258236 | Remote telephone line switching and testing | Charles E. Conklin | 1981-03-24 |