Drilling mud collector for a slip joint of a riser,申请号GB20090013807-传众专利搜索

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发明名称	Drilling mud collector for a slip joint of a riser
摘要
申请公布号	GB2458857(A)	申请公布日期	2009.10.07
申请号	GB20090013807	申请日期	2008.01.10
申请人	BLAFRO TOOLS AS	发明人	OLA BLAKSETH;FRODE JOHNSEN
分类号	E21B21/01;E21B33/08	主分类号	E21B21/01
代理机构		代理人
主权项
地址

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