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发明名称
CHESS CLOCK
摘要
申请公布号
SU1500984(A2)
申请公布日期
1989.08.15
申请号
SU19874322802
申请日期
1987.10.29
申请人
KUZOVNIKOV SERGEJ G,SU
发明人
KUZOVNIKOV SERGEJ G,SU
分类号
G04B21/08;G04F1/08
主分类号
G04B21/08
代理机构
代理人
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地址
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