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发明名称
Educational game device
摘要
申请公布号
US2805069(A)
申请公布日期
1957.09.03
申请号
US19550540868
申请日期
1955.10.17
申请人
CHARLES J. TRABING
发明人
BONARI LAWRENCE P.;VICK ASHLEY
分类号
A63F9/08;G09B17/00
主分类号
A63F9/08
代理机构
代理人
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