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发明名称
Schildvortriebsmaschine
摘要
申请公布号
DE69305693(D1)
申请公布日期
1996.12.05
申请号
DE19936005693
申请日期
1993.05.28
申请人
KABUSHIKI KAISHA ISEKI KAIHATSU KOKI, TOKIO/TOKYO, JP
发明人
AKESAKA, TOSHIO, YOKOHAMA-SHI, KANAGAWA-KEN, JP
分类号
E21D9/06;E21B7/20;E21D9/087;(IPC1-7):E21B7/20;E21D9/08
主分类号
E21D9/06
代理机构
代理人
主权项
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