Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4833717 | Voice spectrum analyzing system and method | Tomofumi Nakatani | 1989-05-23 |
SN
Shogo Nakamura
Overall (1989): #57,198 of 140,708Top 45%
1
Patents 1989