Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6758070 | Door lock with a clutch having a cam-styled axle sleeve | Jer Ming Yu, Chao-Ming Cheng | 2004-07-06 |
| 6725693 | Door lock with a clutch having a cam-styled axle sleeve | Jer Ming Yu, Chao-Ming Cheng | 2004-04-27 |