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发明名称
ELEKTRONISCHE DIGITALUHR
摘要
申请公布号
DE2228275(B2)
申请公布日期
1977.09.22
申请号
DE19722228275
申请日期
1972.06.09
申请人
发明人
分类号
G04G9/00;(IPC1-7):G04C17/00
主分类号
G04G9/00
代理机构
代理人
主权项
地址
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