Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4859170 | Clamping device for a blow mold | — | 1989-08-22 |
| 4836962 | Material injecting method and material measuring apparatus in injection molding machine | — | 1989-06-06 |
| 4830811 | Process for molding double-layered preforms in an injection, stretching and blow molding machine | — | 1989-05-16 |