Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5233648 | Direct dialing-in method in a pabx | — | 1993-08-03 |
YN
Yuzi Nakamura
Overall (All Time): #3,830,082 of 4,157,543Top 95%
1
Patents All Time