Rotary seal for directional drilling tools,申请号AU20020029355-传众专利搜索

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发明名称	Rotary seal for directional drilling tools
摘要
申请公布号	AU2935502(A)	申请公布日期	2002.10.03
申请号	AU20020029355	申请日期	2002.04.02
申请人	CAMCO INTERNATIONAL (UK) LIMITED	发明人	NIGEL DENNIS GRIFFIN;MARK COLEBROOK;PETER RAYMOND HUGHES
分类号	E21B4/02;E21B7/04	主分类号	E21B4/02
代理机构		代理人
主权项
地址

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