Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5483592 | Ringer unit driving system in a subscriber transmission system | Yuzuru Ishioka | 1996-01-09 |
RG
Rika Got
Overall (All Time): #3,734,232 of 4,157,543Top 90%
1
Patents All Time