Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4532844 | Device for supporting a circular saw of sawing machine | Hong Chang | 1985-08-06 |
| 4483378 | Feeding device of wood working machine | James S. Chang, Kai-Jou Chang, Horng-Tswen Chang | 1984-11-20 |