Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4798131 | Method and apparatus for tartars separation | Naotake Ohta, Masahiro Yotsumoto, Haruo Nishino, Hiroshi Tanahashi, Toshiaki Tazawa +2 more | 1989-01-17 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4798131 | Method and apparatus for tartars separation | Naotake Ohta, Masahiro Yotsumoto, Haruo Nishino, Hiroshi Tanahashi, Toshiaki Tazawa +2 more | 1989-01-17 |