Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5662764 | Apparatus for producing corrugated tube | Noboru Hasegawa, Mitsuo Kagabu, deceased | 1997-09-02 |
| 5593535 | Apparatus for producing corrugated tube | Noboru Hasegawa, Mitsuo Kagabu, deceased | 1997-01-14 |