Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6481254 | Cylinder lock combined with a magnetic pin and a non-magnetic pin | Jianxin Wang | 2002-11-19 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6481254 | Cylinder lock combined with a magnetic pin and a non-magnetic pin | Jianxin Wang | 2002-11-19 |