Trykkutlignende stempelventil for anvendelse nedihulls,申请号NO20040001625-传众专利搜索

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发明名称	Trykkutlignende stempelventil for anvendelse nedihulls
摘要
申请公布号	NO327359(B1)	申请公布日期	2009.06.15
申请号	NO20040001625	申请日期	2004.04.21
申请人	BAKER HUGHES INC	发明人	MYERLEY THOMAS S
分类号	E21B34/10;E21B34/00	主分类号	E21B34/10
代理机构		代理人
主权项
地址

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