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经营范围
发明名称
Nachgiebiger Grubenstempel
摘要
申请公布号
DE1169876(B)
申请公布日期
1964.05.14
申请号
DE1955G016400
申请日期
1955.02.04
申请人
ROBERT GRASS
发明人
分类号
E21D15/38
主分类号
E21D15/38
代理机构
代理人
主权项
地址
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