Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4841720 | Roving bobbin exchanging method and apparatus for carrying out roving bobbin exchanging method | Yoshio Kawasaki, Kenji Sasaki, Kazuo Yamada | 1989-06-27 |
| 4842206 | Automatic yarn end finding device for a spinning bobbin | Yosio Kawasaki | 1989-06-27 |
| 4799353 | Method for piecing rovings and exchange roving bobbins in a ring spinning frame and working machine for carrying out this method | Yoshio Kawasaki, Kenji Sasaki, Kazuo Yamada | 1989-01-24 |