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发明名称
Uhr fuer Schachspielzwecke
摘要
申请公布号
DE496274(C)
申请公布日期
1930.04.17
申请号
DE1928D056031D
申请日期
1928.07.03
申请人
OLDRICH DURAS;JOSEF SIMUUNEK
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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