Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5845409 | Drawing board | — | 1998-12-08 |
| 4723762 | Apparatus for sealing the skirt of a converter waste gas recovery system | Toyo-o Murata, Mazumi Nishikawa, Nobuyuki Fujikura | 1988-02-09 |