Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4362468 | Single curvature fan wheel of a diagonal flow fan | Chosei Harada, Masao Nakano | 1982-12-07 |
| 4358244 | Single curvature fan wheel of a diagonal flow fan | Chosei Harada, Masao Nakano | 1982-11-09 |