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发明名称
Ball-rolling toy
摘要
申请公布号
US3118676(A)
申请公布日期
1964.01.21
申请号
US19610124984
申请日期
1961.07.18
申请人
FRED LOUIS
发明人
LOUIS FRED
分类号
A63B67/08
主分类号
A63B67/08
代理机构
代理人
主权项
地址
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