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发明名称
Educational toy
摘要
申请公布号
GB2051450(A)
申请公布日期
1981.01.14
申请号
GB19790019818
申请日期
1979.06.07
申请人
LAN-DIH-LIU;HSING-CHING LIU
发明人
分类号
A63F7/04;A63F9/18;G09B3/02;(IPC1-7):G09B3/02
主分类号
A63F7/04
代理机构
代理人
主权项
地址
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