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发明名称
Schacht- oder Bohrlochauskleidung aus Stahl
摘要
申请公布号
DE1583095(B1)
申请公布日期
1970.04.23
申请号
DE19671583095
申请日期
1967.11.07
申请人
GUTEHOFFNUNGSHUETTE STERKRADE AG
发明人
LINK,HEINZ;SCHUPP,HERIBERT;FROEBRICH,KURT
分类号
E21D5/06
主分类号
E21D5/06
代理机构
代理人
主权项
地址
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