Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6703575 | Arc-extinguishing system for a contact switching apparatus | — | 2004-03-09 |
KY
Kyoichi Yamamoto
Overall (2004): #171,240 of 270,089Top 65%
1
Patents 2004