Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5654047 | Explosion-proof porcelain housings for gas-filled insulating apparatuses and process for producing such porcelain housings | Akihiro Watanabe, Keiichi Asai, Nagahiro Kawano, Masafumi Sugi | 1997-08-05 |