Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8510876 | Drain valve device for cleaning water tank, and drain valve for drain valve device | Yoshihiko Morokuma | 2013-08-20 |
| D484227 | Trap portion of a water closet | — | 2003-12-23 |