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发明名称
EXPANDIERSYSTEM ZUR STUFENWEISEN AUSDEHNUNG EINES ROHRFÖRMIGEN ELEMENTS
摘要
申请公布号
AT354718(T)
申请公布日期
2007.03.15
申请号
AT20040727912T
申请日期
2004.04.16
申请人
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.
发明人
LOHBECK, WILHELMUS CHRISTIANUS MARIA;ZIJSLING, DJURRE, HANS
分类号
B21D39/20;E21B43/10;(IPC1-7):E21B43/10;B21D39/08;B21D31/04
主分类号
B21D39/20
代理机构
代理人
主权项
地址
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