Issued Patents 2019
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10471479 | Treatment device and exhaust switching device therefor, and exhaust switching unit and switching valve box | Hideaki Higuchi, Toshiaki Iwabuchi, Tsutomu Kojima | 2019-11-12 |