Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5186083 | Structure of Y-type socket wrench | — | 1993-02-16 |
| 5140736 | Bicycle chain rivet dismantling apparatus | — | 1992-08-25 |
| 5099726 | Hand tool for mounting/dismounting bicycle cranks | — | 1992-03-31 |
| 4960017 | Hand tool for mounting or dismounting bicycle cranks | — | 1990-10-02 |
| 4953893 | Self-detachable bicycle auxiliary wheel bracket structure | — | 1990-09-04 |
| 4926721 | Multipurpose hand tool structure | — | 1990-05-22 |