Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5673594 | Speed change lever apparatus for use in bicycles | Jack Huang, Chung-Ping Chiang, Chan-Hua Feng | 1997-10-07 |
| 5660083 | Gear shifting device for a multi-speed bicycle | Jack Huang, Chan-Hua Feng | 1997-08-26 |