Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5603655 | Method and apparatus for working on a workpiece, using foamed working liquid in area of contact between the workpiece and working tool | Minoru Haga, Hisatoshi Yoshida, Katsuhiro Mori | 1997-02-18 |