Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4858928 | Racket frame | Kunimasa Muroi, Yoshinari Inagaki | 1989-08-22 |
TA
Tetsuyuki Awano
Overall (1989): #51,888 of 140,708Top 40%
1
Patents 1989