Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6138536 | Screw driving gun with a screw orientation guide member | — | 2000-10-31 |
| 6036013 | Screw feed belt | — | 2000-03-14 |
| 5667348 | Screw for fibrous boards | Chao-Tai Cheng | 1997-09-16 |