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发明名称	Wellhead
摘要
申请公布号	GB2326430(A)	申请公布日期	1998.12.23
申请号	GB19970012469	申请日期	1997.06.17
申请人	* PLEXUS OCEAN SYSTEMS LIMITED	发明人	B H * VAN BILDERBEEK
分类号	E21B33/00;E21B33/03;(IPC1-7):E21B33/03	主分类号	E21B33/00
代理机构		代理人
主权项
地址

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