JAO-HSING TSAI
Patent Applications and Registrations
Patent applications and USPTO patent grants for JAO-HSING TSAI.The latest application filed is for "adjustable handles for spring bars".
- JAO-HSING TSAI -
- Jao-Hsing Tsai - Hsinchu TW
| Patent | Date |
|---|---|
| Adjustable handles for spring bars App 20040132592 - Yu, Hui-Nan | 2004-07-08 |
| Resistance adjustment mechanism for easy pull exerciser Grant 6,659,922 - Yu December 9, 2 | 2003-12-09 |
| Multipurpose hand puller App 20030207741 - Yu, Hui-Nan | 2003-11-06 |
| Adjustable weight-bearing mechanism App 20030203796 - Yu, Hui-Nan | 2003-10-30 |
| Pulling exerciser Grant D474,818 - Yu May 20, 2 | 2003-05-20 |
| Powerful Waist Twister App 20030092546 - Yu, Hui-Nan | 2003-05-15 |
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