Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6577882 | Arrangement and a method relating to power supply in a communications network | — | 2003-06-10 |
| 6263067 | Telephone exchange related main distribution arrangement | — | 2001-07-17 |
| 5982618 | Arrangement in cooling electronic equipment | — | 1999-11-09 |
| 5971769 | Intermediate coupling | Erik Fischer, Uno Nilsson | 1999-10-26 |
| 5939689 | Matrix-related switching arrangement including movable rods and balls | — | 1999-08-17 |
| 5920049 | Crosspoint matrix switch with ball actuating members for contact mechanisms | — | 1999-07-06 |
| 5347513 | Fast operating program controlled digital uniswitch | Erik O. Abefelt, Lars-Goran Petersen | 1994-09-13 |
| 5305325 | Method and a device for supervising and testing majority voting | — | 1994-04-19 |
| 5214400 | Galvanic switch | — | 1993-05-25 |
| 5062801 | Function unit in which circuit boards are mounted on a center plane by way of distribution boards | — | 1991-11-05 |
| 4954674 | Matrix crosspoint switching device | — | 1990-09-04 |
| 4646291 | Synchronization apparatus in transmitting information on a simplex bus | Carl-Gunnar E. Perntz | 1987-02-24 |
| 4575841 | Method and apparatus for through-connection testing in a digital telecommunication network | Nils U. H. Fagerstedt, Franko Stipcevic | 1986-03-11 |
| 4559624 | Digital concentrator | Nils U. H. Fagerstedt, Jens E. Pehrson | 1985-12-17 |
| 4380083 | Method of and an arrangement in a telecommunication system for regulating the phase position of a controlled signal in relation to a reference signal | Karl A. Andersson | 1983-04-12 |