Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4874171 | Golf club set | Hiroshi Ezaki, Katsumi Iida | 1989-10-17 |
YK
Yoneji Kobayashi
Overall (1989): #40,923 of 140,708Top 30%
1
Patents 1989