Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5666846 | Extrusion apparatus for making seamless tubes from hollow billets | Chin-Fu Chen, Wen-Hwa Lu | 1997-09-16 |
| 5632319 | Method for manufacturing environmentally conscious foamed aluminum materials | Chin-Chen Yang, Kou-Chang Su, Ting Chiou | 1997-05-27 |