Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4332995 | Electrical discharge machine | Tetsuro Ito, Toshiro Oizumi | 1982-06-01 |
SY
Shigeo Yamada
Overall (1982): #30,871 of 81,411Top 40%
1
Patents 1982