Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4715032 | Method and apparatus for the connection of a closed ring through a telephone exchange | — | 1987-12-22 |
ON
Olof E. Nilsson
Overall (All Time): #3,987,765 of 4,157,543Top 100%
1
Patents All Time