Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4823933 | Ballet shifter | Naoyuki Hashimoto, Kazuichi Yamashita | 1989-04-25 |
MY
Manabu Yamane
Overall (1989): #77,977 of 140,708Top 60%
1
Patents 1989