发明名称 Throwing ring
摘要 A throwing ring includes a substantially flat ring web having an outer edge, an inner edge defining a central opening, the ring web having a profile which over its periphery is periodically non-uniform and at both sides of a ring diameter is folding non-symmetrical.
申请公布号 US4946173(A) 申请公布日期 1990.08.07
申请号 US19890342163 申请日期 1989.04.24
申请人 SCHLEGEL, JOERG-FRIEDER;SATTLER, GERHARD 发明人 SCHLEGEL, JOERG-FRIEDER;SATTLER, GERHARD
分类号 A63B65/10 主分类号 A63B65/10
代理机构 代理人
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