Wellhead retrieving tool,申请号AU19990021414-传众专利搜索

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发明名称	Wellhead retrieving tool
摘要
申请公布号	AU2141499(A)	申请公布日期	1999.10.14
申请号	AU19990021414	申请日期	1999.03.26
申请人	BAKER HUGHES INCORPORATED	发明人	JOHN P DAVIS
分类号	E21B31/16;E21B31/20;E21B33/035	主分类号	E21B31/16
代理机构		代理人
主权项
地址

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