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发明名称
Chess training aid and solitaire playing device
摘要
申请公布号
US2984914(A)
申请公布日期
1961.05.23
申请号
US19600023187
申请日期
1960.04.19
申请人
GALLANT KNIGHT, INC.
发明人
FEIGEN MORTON B.;SHARP JOHN H.
分类号
A63F3/02;G09B19/22
主分类号
A63F3/02
代理机构
代理人
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地址
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