Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4842205 | Shredding machine | Yasuo Araki, Tetsuya Itoh, Yoshihalu Fujii | 1989-06-27 |
| 4817877 | Shredding machine | Tetsuya Itoh, Shizuo Yoshikawa | 1989-04-04 |
| 4815670 | Shredder | — | 1989-03-28 |