Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882101 | Method of producing a reinforced rubber hose by using a plastic mandrel | Katsuhiko Ohkita, Ken Niwa | 1989-11-21 |
| 4859380 | Method and apparatus for producing fiber-reinforced rubber hose | — | 1989-08-22 |