Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5695064 | Self-opening plastic bag pack system | Frank Huang | 1997-12-09 |
| 5669273 | Screw driver | — | 1997-09-23 |
| 5670013 | Dies for manufacturing a pack of self-opening bags | Frank Huang | 1997-09-23 |