Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5673594 | Speed change lever apparatus for use in bicycles | Jack Huang, Chung-Ping Chiang, Yuh-Ming Hwang | 1997-10-07 |
| 5660083 | Gear shifting device for a multi-speed bicycle | Jack Huang, Yuh-Ming Hwang | 1997-08-26 |
| 5632226 | Bicycle speed indicator | Jack Huang, Chung-Ping Chiang | 1997-05-27 |