Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5649427 | White smoke generating apparatus and method of using the same | Hisayuki Usui, Ryutaro Takahashi, Masahiro Hirano, Masahiro Yonekura | 1997-07-22 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5649427 | White smoke generating apparatus and method of using the same | Hisayuki Usui, Ryutaro Takahashi, Masahiro Hirano, Masahiro Yonekura | 1997-07-22 |