Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5715522 | Booster arrangement for a portable telephone | Markku Vimpari | 1998-02-03 |
| 5267308 | Speed dialling method for a telephone unit | Ahti Vaisanen | 1993-11-30 |
| 5153468 | Method and a circuit for reducing microphony | Markku Vimpari | 1992-10-06 |