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发明名称
DATUMSANZEIGEVORRICHTUNG
摘要
申请公布号
DE1673676(B1)
申请公布日期
1972.05.31
申请号
DE19671673676
申请日期
1967.05.03
申请人
NISSEN WALTER DR
发明人
NISSEN WALTER DR
分类号
G04B19/253;(IPC1-7):G04B19/24
主分类号
G04B19/253
代理机构
代理人
主权项
地址
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