Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4353388 | Butterfly valve | Susumu Takeda, Masatoshi Nakai | 1982-10-12 |
MI
Mitsunori Isoyama
Overall (1982): #42,598 of 81,411Top 55%
1
Patents 1982