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发明名称
Afbryder-kontraventilmekanisme til viklede rör
摘要
申请公布号
DK200301152(A)
申请公布日期
2004.04.29
申请号
DK20030001152
申请日期
2003.08.11
申请人
SCHLUMBERGER TECHNOLOGY B.V.
发明人
SMITH, PETER V.;LEISING, LAWRENCE;RAMSEY, ROBERT M.
分类号
E21B17/20;E21B21/10;E21B23/00;(IPC1-7):E21B23/00
主分类号
E21B17/20
代理机构
代理人
主权项
地址
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