Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5657877 | Rotary classifier for a roller mill | Hirohisa Yoshida, Tsugio Yamamoto, Shuichi Sakota | 1997-08-19 |
| 5603268 | Coal pulverizer associated with a rotary classifier and method for operating the same | Masaaki Kinoshita | 1997-02-18 |