Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4429184 | Mitigation of faults in a telephone exchange | Per I. Holm, Karl F. L. Nyberg | 1984-01-31 |
US
Ulf A. Sodermark
Overall (All Time): #4,028,900 of 4,157,543Top 100%
1
Patents All Time