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发明名称
BETRACHTUNGSVORRICHTUNG.
摘要
申请公布号
DE1634542(U)
申请公布日期
1952.02.14
申请号
DE195100P2727U
申请日期
1951.12.15
申请人
WALTER G. PAETSCH
发明人
WALTER G. PAETSCH
分类号
主分类号
代理机构
代理人
主权项
地址
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