Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4858928 | Racket frame | Kunimasa Muroi, Tetsuyuki Awano | 1989-08-22 |
YI
Yoshinari Inagaki
Overall (1989): #41,151 of 140,708Top 30%
1
Patents 1989