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发明名称
GESCHLITZTE AUSWEITBARE ZENTRIERVORRICHTUNG
摘要
申请公布号
AT325937(T)
申请公布日期
2006.06.15
申请号
AT20030744424T
申请日期
2003.03.11
申请人
DOWNHOLE PRODUCTS PLC
发明人
KIRK, IAN ALASTAIR;BARRON, WILLIAM;CLARK, ALISTAIR BERTRAM
分类号
E21B43/10;(IPC1-7):E21B43/10
主分类号
E21B43/10
代理机构
代理人
主权项
地址
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