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发明名称
DART-OPERATED BIG BORE BY-PASS VALVE
摘要
申请公布号
AU2003271839(A1)
申请公布日期
2004.03.29
申请号
AU20030271839
申请日期
2003.08.29
申请人
LEE, PAUL, BERNARD
发明人
PAUL, BERNARD LEE
分类号
E21B21/10;E21B34/14;(IPC1-7):E21B21/10
主分类号
E21B21/10
代理机构
代理人
主权项
地址
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