Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4841779 | Tension tester | Kenhachi Mitsuhashi, Yoshinobu Ohashi, Akira Yamada | 1989-06-27 |
SN
Shohei Nakayama
Overall (1989): #57,179 of 140,708Top 45%
1
Patents 1989