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经营范围
发明名称
Grubenstempel
摘要
申请公布号
DE1043250(B)
申请公布日期
1958.11.13
申请号
DE1951B045687
申请日期
1951.06.29
申请人
BOCHUMER EISENHUETTE HEINTZMANN & CO.
发明人
分类号
E21D15/502
主分类号
E21D15/502
代理机构
代理人
主权项
地址
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