Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8074480 | Rekeyable lock cylinder with fool-proof function | Ping-Hung Hsieh | 2011-12-13 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8074480 | Rekeyable lock cylinder with fool-proof function | Ping-Hung Hsieh | 2011-12-13 |