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Patent applications and USPTO patent grants for Zhuang; James Jia.The latest application filed is for "convertible utility cart".
Patent | Date |
---|---|
Convertible utility cart Grant 7,854,444 - Zhuang December 21, 2 | 2010-12-21 |
Multi-functional personal fitness apparatus Grant 7,537,554 - Zhuang May 26, 2 | 2009-05-26 |
Convertible utility cart App 20080217503 - Zhuang; James Jia | 2008-09-11 |
Multi-functional personal fitness apparatus App 20070270293 - Zhuang; James Jia | 2007-11-22 |
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