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发明名称
Amusement device
摘要
An amusement device having means for treading thereon which causes a rolling action. The device includes a pair of straps for the stabilization of the user.
申请公布号
US4073504(A)
申请公布日期
1978.02.14
申请号
US19760656356
申请日期
1976.02.09
申请人
KNAPP, CATHERINE
发明人
KNAPP, CATHERINE
分类号
A63B26/00;(IPC1-7):B62B11/00
主分类号
A63B26/00
代理机构
代理人
主权项
地址
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