Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6539577 | Vacuum cleaner suction tool with partition defining air current dust pickup path | Atuo Hamada, Souji Sakata, Kazuyoshi Yoshimi, Kazumasa Kamatani, Nobuaki Takahashi +2 more | 2003-04-01 |