Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5384837 | Line switch control circuit arrangement for telephone subset | — | 1995-01-24 |
| 5317634 | Telephone subset arrangement | — | 1994-05-31 |
| 5208718 | Protection circuit | — | 1993-05-04 |
| 5157720 | Dialler chip mode signal | — | 1992-10-20 |
| 5113434 | Battery boosted dial memory | — | 1992-05-12 |
| 5014308 | Circuit arrangement for providing power for an IC chip in a telephone subset | — | 1991-05-07 |