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发明名称
VERFAHREN UND VORRICHTUNGEN ZUR GRABENLOSEN VERLEGUNG VON ROHRLEITUNGEN
摘要
申请公布号
DE502007003607(D1)
申请公布日期
2010.06.10
申请号
DE200750003607T
申请日期
2007.01.19
申请人
HERRENKNECHT AG
发明人
KOEGLER, RUEDIGER
分类号
E21B7/04
主分类号
E21B7/04
代理机构
代理人
主权项
地址
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