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发明名称
VORRICHTUNG UND VERFAHREN ZUR HERSTELLUNG UNTERIRDISCHER LEITUNGEN.
摘要
申请公布号
DE68912124(D1)
申请公布日期
1994.02.17
申请号
DE19896012124
申请日期
1989.04.11
申请人
MAASTEK KY, YLOJARVI, FI
发明人
ILOMAEKI, VALTO, SF-33470 YLOEJAERVI, FI
分类号
E21D9/06;E21B7/06;E21D9/00;E21D9/087;E21D9/12;(IPC1-7):E21D9/08
主分类号
E21D9/06
代理机构
代理人
主权项
地址
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