Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D643914 | Collecting device for substances floating in air | Yoshiya Endo, Mitsuo Ishizuka | 2011-08-23 |
| D643915 | Collecting device for substances floating in air | Yoshiya Endo, Mitsuo Ishizuka | 2011-08-23 |