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发明名称
Chess game recorder
摘要
申请公布号
US2434066(A)
申请公布日期
1948.01.06
申请号
US19450633417
申请日期
1945.12.07
申请人
FEY ARTHUR W
发明人
FEY ARTHUR W.
分类号
A63F3/02
主分类号
A63F3/02
代理机构
代理人
主权项
地址
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