Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6805645 | Tooth contour structure for large sprocket set of bicycle | Tzuoh-Fei Mao | 2004-10-19 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6805645 | Tooth contour structure for large sprocket set of bicycle | Tzuoh-Fei Mao | 2004-10-19 |