发明名称 Exercising device
摘要 An exercising device has a belt adapted to be worn by a user, and an elastic element fixable by the belt to a user's body and having two ends graspable by a user for expanding the elastic element and exercising.
申请公布号 US6517470(B1) 申请公布日期 2003.02.11
申请号 US20000721883 申请日期 2000.11.27
申请人 发明人
分类号 A63B21/055;(IPC1-7):A63B21/02 主分类号 A63B21/055
代理机构 代理人
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